How to Flush Out Stop Leak from your Radiator and Cooling System
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- Опубликовано: 8 фев 2025
- Here is how to flush out that stop leak from your cooling system and radiator. After using Bar's Stop Leak in my vehicle, it immediately started running hot. I tried flushing it with Prestone Radiator Flush as well as using the vinegar flush method but nothing worked until I used ThoroFlush.
Symptoms of needing to flush out stop leak:
Engine overheating after using stop leak
ThoroFlush is available at this Amazon link and also at most auto parts stores. AutoZone typically keeps it in stock.
www.quickfixman...
Also, after using this stuff be sure you do a complete flush of your cooling system. See my flushing video here if you aren't sure how.
• How to Flush Your Car'...
Please note the above links may be affiliate links from which I earn a commission on.
Unfortunately had this exact situation on the same year truck. Bought the truck used with a bypassed heater core. Previous owner used Stop leak on the heater core but it failed. Never flushed out this crap. Used the product and saw some improvement buy this stuff was caked on everywhere. Had to change the radiator and waterpump. Flushed out the engine for 30 minutes and still saw aluminum flakes in the system. Thanks for posting. stop leak has got to be the worst thing you can introduce into you vehicle. Let it leak and get it fixed.
Absolutely agreed. This stuff can wreak can pretty bad havoc on your vehicle. Like you said, just get the leak fixed.
I also had same problem a month ago. Tried Bar's Stop leak and engine overheated and heater core leak was unaffected. Took out my thermostat, had to flush the radiator, still overheats but not as bad as before. Had a shop replace the heater core. Will try this method and see what happens. Thanks for the video.
I've had my 02 blazer for just under 6 years, had to replace pretty much the entire cooling system just due to maintenance but I swear the previous owner must have put in 5 things of stop leak cuz I've flushed this thing a million times, and still have the nasty brown crud coming out. Thanks for this video I'm now going to try this product.
That stuff is terrible on engines. I wish more people understood just how bad it can be.
NO LIES IT WORKS. 🎉 Had the same issues. Saw the video and was instantly hopeful? It's pricey and hard to find but worth it .
Actually your procedure is wrong and probably mislead a lot of people. You don't start and run your vehicle for 10-12 minutes, you start and run your vehicle for '10-12 minutes after it reaches operating temperature'. It needs to get to operating temperature to open the thermostat to clean the whole system, otherwise it doesn't go hardly anywhere. And to need to turn heat on so it cleans the heater core.
I simply followed the directions on the bottle. I agree with you and understand where you are coming from. The problem is that this stuff can only be in your system for 10-12 minutes before it can cause damage so it would be tough to wait for it to get to temperature and then put this stuff in. Maybe removing the thermostat would have helped but I achieved the exact results I needed from using this stuff.
@@ClintHolland the instructions do say to leave in 10-12 minutes 'after reaching operating temperature'. I tried this stuff on parts, it isn't as strong as I thought it would be.
elkbow I am looking at the instructions right now and they say nothing about letting it get to operating temperature. And they very specifically say not to exceed 12 minutes. It might not be as strong as they say but I certainly wasn't risking that.
From their website:
1. Pre-mix 1 pint bottle of Thoro-Flush powder with one gallon of water.
2. Drain 1 gallon of fluid from a full coolant system.
3. If vehicle does not have a radiator cap, remove top radiator hose and add mixture through hose.
4. Pour the mixture into the radiator. DO NOT pour into the overflow tank.
5. Replace radiator cap or re-attach radiator hose and tighten clamp.
6. Start vehicle with heater on high and run engine for 10-12 minutes.
CAUTION: Thoro-Flush is very powerful.
DO NOT EXCEED 12 minutes, or coolant system damage may occur.
7. Stop engine and drain entire coolant system.
8. Flush coolant system with water until the water is clear of red Thoro-Flush
@@ClintHolland I just ordered a bottle from Amazon, and the bottles look a little different than the one on your video, like the labels swap green with white. Look for yourself. Perhaps you are BOTH right, because the instructions on the new bottles are DIFFERENT than on the old bottles?!!! Do either you or elkbow see a date code on your bottles, so we can establish who has the latest instructions?
@@SteveRichfield I am going to reach out to the manufacturer and see what they say. Maybe they don't even realize they have a discrepancy. I will come back when I have an answer.
I used a garden hose and dawn dish soap. I ran my Honda for about 5 minutes with about 4 tbs of dawn and pure water and let it sit for about 30 minutes then hooked up the hose and flushed it out. Did this twice and no more stop leak is coming out and no more overheating issues.
So you didn't use the Thoro-Flush at all? Just Dawn dish soap?
@@johnm.woodman1790 no flush stuff, just dawn. You have to fill it with distilled water and coolant and run it for a heat cycle, then drain it all and top it off to make sure there aren't any impurities and minerals that's in tap water.
@@OGbqze Thanks for the reply!
@@johnm.woodman1790 🤘
If you look up the MSDS (just google Thoroflush MSDS and its the first result) the ingredients are basically red dye, Trisodium Phosphate, and baking soda. TSP is used as concrete cleaner, and dissolves silica which is concrete sealer... and radiator stop leak. Sodium Silicate reacts with CO2 to form a glass-like deposit of silica. TSP eats it for lunch. But will also eat the oxide layer on your aluminum engine block, and the aluminum itself, hence the short exposure time. Id do it cold, since the reaction rate on a hot engjne part would probably result in damage, where doing it cold will likely help target etch the silica deposits.
Or maybe skip the pricey Mcprice price and just get a bottle of TSP from ACE for like 6 bucks? YMMV
I get what you are saying but you are missing a huge point here. TSP has a ph of 12-14. That ph is so caustic that it will react with aluminum and cause pitting, corrosion and even weaken the aluminum, which you can imagine might be pretty bad for someone with an aluminum block. It also causes rapid formation of hydrogen gas. Not sure about you but having a flammable gas potentially building up with my coolant system doesn't exactly sound like a recipe for success. What you may have missed is that Thoroflush also contains baking soda which has a ph of 9. This combination lowers the ph of the TSP solution so that it doesn't have the same harmful effects on the internals of your engine yes still has some cleaning potential. Someone could easily figure out the correct combination of those ingredients to make it safe but telling my viewers to buy chemicals that they need to mix together in very precise proportions else they may ruin their engine or hurt themselves doesn't sound like the best outcome for me, especially not to save like $15. Thanks for sharing however.
@ClintHolland yeah, it's got some bicarbonate to act as a buffer, and being a lab trained biologist, I'd be applying this with a but more care than just dumping it in. *high five* on translating for the general population.
But either way, definitely not something you want to get hot, or to have sit in your engine for more than a few minutes. I'd hesitate to even nudge the 10 minute mark.
Sounds like it would be best to remove thermostat before using product so you don't have to get it hot for circulation to happen. It would be alot better for final flushing if the engine was cooler also...
TSP and backing soda, both real cheap...
1. Why not remove the thermo for faster flow and better chance of faster heat up?
2. How to clean the overflow tank? Mine has silver spec as well…
Thanks I’m advance!
On many vehicles, such as this one, the thermostat is what seals the housing so you don't have that option. But if you can, that's a great idea.
Thank you for the video! Went and bought it right after watching your video.
Awesome. Hope it works out for you but come back and let us know.
@tony38261 did it work for you?
2004 Ford Taurus
1st off, Im a woman. I know some things about cars, but not this. 🙄
I never knew you needed to get that Stop Leak stuff out ASAP.
We've had some cold nights. 2nd night running heat. Next day, my temp gage was on the 'H' as soon as I got around the corner.
Both hoses on both sides of the thermostat were hot. I got it home. The overflow has clumps of that stuff in it. WHERE DO I START? Do a water hose flush while its running? Clean the overflow 1st?
I read a lot of comments. Thanks to Everyone! Any advice would be helpful.
Never seen a radiator cap on this car. 🤔 Gonna look it up.
You could start with just a water flush but you will probably want to try this Thoroflush at some point. They make flush kits you can get at any auto store. Start there and if that doesn't help try Thorofulsh.
@@ClintHolland Thank you. Had a guy do the radiator flush with a chemical from the auto store. Put the correct coolant in it. I had orange, when it takes yellow 🤦🏿♀️
It ran fine for two weeks, then I started smelling coolant, & a leak up front, as if it's coming from the radiator. Hopefully the plug just came loose.
Thanks again! 🤗
I'm a little confused. Every review of the Irontite Thoroflush that I've read said to pour it in and run your vehicle for 10 minutes, no more than 12 or it could damage your coolant system. The directions on the bottle say to "start your vehicle with the heater on high and run for 10-12 minutes after vehicle reaches operating temperature." It takes my truck 11 minutes to reach normal operating temperature. That means I would pour it in and run it for at least 20 minutes. I want to do it right without messing it up even more. By the way I used Blue devil pour and go to stop a leak and totally bogged up my radiator. Don't use that product either.
You are correct. This stuff isn't nearly as strong as they make it out to be. You want to let the vehicle run for 10 minutes after the thermostat has opened which may in fact take 20 minutes total. You will be fine.
Thanks Clint. Your video was very helpful. Keep up the good work brother.
@@donegan2011 Were you able to flush out blue devil with this? Just made the mistake of using it myself and I’m trying to flush it as well.
Guy before me used some sort of stop leak. Every year before winter I will flush out the entire system and a few more times during winter. Ill have heat for about a month then nothing, solid clog in the heater core. Ive connected hose fittings to the heater core because I do it so much. I've even tried liquid draino for sinks, ( just in and out of the heater core, not the engine) But still clogs, its an old 1999 Chevy so its basically impossible to replace the heater core. I wonder if this stuff can fix the impossible clog. p.s. Every time I flush it all kinds of crap comes out, even larger rock looking things. Its like the guy used sand and concrete. oh and the engine does not overheat.
Wow. Haven't seen one that bad. Probably what happened is he used multiple bottles of that stop leak. This stuff is pretty good but I suspect that Drano is actually stronger than this stuff. Might be worth taking that to a shop that has a coolant flush machine that can flush it with pressure and a solution for an extended period of time.
Video starts at 2:03
Read the instructions on the jug.
Drain and flush after twelve minutes.
Large Marge wats it called
ThoroFlush
this happened to me..EXACT same thing.thank you!
You are welcome. It has happened to the best of us. Unfortunately, stop leak has a purpose and usually does it well. It's just the long term damage it can cause if you don't get it out of there.
I also had same problem a month ago. Tried Bar's Stop leak and engine overheated and heater core leak was unaffected. Took out my thermostat, had to flush the radiator, still overheats but not as bad as before. Had a shop replace the heater core. Will try this method and see what happens.
Did you see bits of metal inside the radiator? I'm trying to confirm if my car's previous owner used Stopleak, The car was in storage for 16 years, It had water instead of coolant, I replaced the Water pump, Thermostat and Radiator, flushed it and filled it with coolant. After 7 short test drives, it started overheating, when you look thru the cap hole, you can see grey pieces of metal jammed in the little intake holes.
I did see something similar. It will almost sparkle in the light if they used this stuff. Give this stuff a try and see if it helps.
Have a 99 honda civic. Had a small coolant leak from the head gasket. Put that bars stop leak in and my radiator exploded. So i spent three days putting a new head gasket on the car and installed a new radiator and new coolant hoses. Before I started the car I flushed the head, block, and heater core all separately and in both flow directions. After driving the car for a day the heater core got clogged. So i flushed the system two more separate times and still the heater core kept getting clogged after a day of driving. I've pulled the dash board on this car once and I hated it. I hope this cleaner works for me.
Best of luck to you. That Bars stuff can wreak some crazy havoc on your car. Hope this does it for you.
@@ClintHolland I had to take a flat headed screw driver and crush up all the stuff that clogged up my cooling jackets when I pulled the head.
I had to do the same with my 97 Camry. I ran full strength clr in it for a few hours and that helped get a lot of stuff out.
I’m going to try a weak Muriatic acid mixture next.
I've heard you can put soap in there. I used a royal purple flush and i feel like it did an awesome job but I didn't use it on a clog. But my 100k mi coolant looked really murky. My old van is clogged with stop leak and 300k mi tho so I need to get serious! Definitely worth a try!
I would be careful with soap. If you don't get all of that out and there is enough still left to cause bubbles, that would greatly reduce the ability for it to cool. But if you use soap and then do a really good water flush, you should be fine.
Is this approved for aluminum? Is this an acid ?
I have an aluminum heater core disconnected and ruining a pump with just soapy water,
I didn't have heat in my 05 Accord. I suspected the HC but I replaced the rad ( as I can see it was going), hoses & flushed out HC. I have tried this same sealant but nothing & 2 bottles too! I think if I try your recommenation, it might fix the HC ''clog'' if there is one and get rid of the stop leak, since its fresh in there.
Were you able to try this Omar and if so, did it help?
@@ClintHolland i tried it & hopefully i got most of out. I have heat but my driversside vent's don't blow hot heat. . Im sure stop leak would have fixed a " small" leak if there was one.
This cleaner would have cleaned up a foul cooling system maybe not perfect but 2 applications might help.
Hope the new zerex radiator service does the job. Cant get thoroflush where I'm at and I need to get this done tonight! Dam fam member put stop leak in to "help" instead of just putting fluid in as needed. It was an "inconvenience "
It is crazy how many people experience problems with Stop Leak yet there are many mechanics out there and on YT that still push that product. It is good in an emergency only.
I bought some similar stuff, fixed the leak but now my heater doesn't work, ill try this, anything else I should know? 2004 BMW 325I
Yep. You need to have the original leak fixed before using this stuff otherwise it might undo the leak repair and cause it to start leaking again.
@@ClintHolland My heat came back in a few days so I think imma just leave it be
Hey let me ask you a question in the beginning of the audio you said you had used it and how you have not had any overheating issues since ! But now in your video hear you are using again ? So what's up
I actually ended up having to use this stuff 3 times, each time for the same reason. I traveled for work and my heater core started leaking on my twice while out of town so I had to use this both times to get home. Then a few years later the radiator actually sprung a leak and I used it to get home and replace the radiator.
Bypass the heater core and it will definitely run cooler.....
Thank you for posting this. I bought a used truck. Saw the stop leak layer in the overflow clogging the cap but everything else was ok. Thought will just flush out, nope. I'm to the point of pulling everything off replacing radiator which is newer not the one that needed stop leak but previous owner didn't clean it out. Now I have the biggest nightmare ever. I'm not overheating but it's not flowing right either. I hope this works.
This saved my truck for quite some time but eventually I did end up having to replace the radiator. Wasn't because of the stop leak but after replacing the radiator it ran much cooler.
I plan on replacing the rad anyways. Just trying to get this stuff out. I'm not sure how much he used I'm estimating a lot more than one. I've flushed a few times and it still clogs my cap and layers my reservoir ever couple days and I just keep scooping it out I'm just hoping this loosens it enough that when I open it all up I can flush it all out. I've never dealt with it before and don't ever plan on dealing with it again
Patrick Ackerman I'm in the same situation, how did you get all the sealant out?
not saying that stop leak is good, but I blew a head gasket with 280k plus, I put stop lean in it and it worked for a few days, I was commuting about 210 per day until the engine through a rod, the car never ran hot and with newer engine still runs cool but not when I'm climbing under excessive load.
I think i have stop leak in the radiator that might be causing this issue and seen this video, and also see some saying to stay away from this stuff, do i have any other options?
Not that I am aware of. This stuff can save your life in a pinch and is sometimes cheaper than the repair. But in many cases, it causes you to have long term issues like over heating and such that flushing is the only way to fix.
I had to open the radiator from the top with a plumbing torch then pour gasoline into the radiator and with a thin stick push that Bars stop leak out, its brown and strong but not all of the radiator clogged, I will have to solder the top back on later,,,,,,, 1990 Mitsubishi 4G63.
Wow. I know this stuff can cause problems but never heard of one that bad.
I tried the pelletized Rislone stop leak yesterday...almost blew my engine!!! Was running very smooth before that..not drivable now
Yep, if you go through the comments you will see tons of comments from people that had this same thing happen. And many more stores across the internet.
the stuff he used was a aluminum stop leak will it work with a copper based stop leak , i had put a new head and radiator in, but not the heater core it to hard $$$ and has been bypassed, can this be product use by a pump only though the heater core and it be used cold ? and will it work ?
I am not the manufacturer so take this for what it's worth. Definitely could just pump it through a heater core if you had a pump to do so. I would just suggest you dissolve it in hot water before doing so. I don't think it requires hot water but it will certainly dissolve better in it and probably work better.
@@ClintHolland thanks
i can pretty much just put this in my over flown tank right coolant globe? i have a mk4 jetta
I wouldn't use the overflow tank for this application. If you don't have a radiator cap this is one of those where you will want to remove a radiator hose and get it in the radiator that way.
I put this stuff in radiator but now i have high coolent temp code, how to remove this stuff from radiator ?
I am not sure I understand your question. You put stop leak in your radiator or you put Thoroflush in your radiator?
I have a 2010 BMW 335i and I’m an idiot for putting bars leak in it but I need to get it out is this save to use in my car ?
Is it safe I mean?
I can only speak for what the company says and according to them it is safe for any vehicle. I have used it 3 times now on different vehicles and never had an issue. However, I would suggest fixing whatever caused you to need Bars in the first place before using this.
So the same thing kinda happened to me, my 2017 ford fusion se kept leaking coolant so I poured a sealant similar to this one poured it the coolant reservoir right after that my car is now over heating really fast, questing it clogged it; will this work for my problem?
I can't guarantee it but it sure worked for mine and many others here in the comments. Pretty cheap and easy to test out.
How many people tried this and had successful results? Would it work on Blue Devil, I have that in my system. It's composed of sodium silicate (liquid glass) not sure how to dissolve or break that down. Might this work?
My suspicion is that it probably wouldn't work. There is no mention of it removing head gasket sealers in their description nor from any of the reviews of people using it. I would say it would probably won't hurt to try it but I wouldn't put a ton of faith in it.
www.sciencemadness.org/smwiki/index.php/Sodium_silicate
Blue Devil is made of sodium silicate. This website says that cured sodium silicate can be broken down with organic compounds like acetone or ethanol. Proceed at your own risk.
Did you try it? If so, did it work?
@ 4:29 Non OSHA compliant foot ware.
Most of my life is non-OSHA compliant.
Who cares! Most of the factories I worked in are non OSHA compliant. I've seen you write this on a lot of videos. Get a life!
@Quick Fix 😆
Can you rev the engine a little with the chemicals in the cooling system for 10 minutes?
You absolutely can.
I have a serious overheating issue going on with my 2010 Dodge Charger RT. I just put a brand new radiator, thermostat, and radiator cap on the car, I put a brand new water pump on the car last year. And it's still overheats the only part of the cooling system I have not replaced is the heater core. When I turn on the heat to the hottest heat setting, on the highest fan speed the heat will come out hot but only for a few minutes as it starts to cool off on its own and it will blow cold air instead of heat I am not sure what is going on. I noticed that the lower radiator hose does not get hot. I've use bars stop leak on the car before and I've noticed that it has lumps and clumps of buildup in it and I am not sure if one of those lumps is blocking the flow of my coolant guess what I'm thinking but I am not exactly sure I am going to try the stuff you use and see if it fix my problem I hope that it does because I I have done everything I can to try to fix it if you have any advice I would love to hear I'm curious to know why my lower radiator hose does not get hot but the other hoses get hot? Thanks
That sounds like exactly what is going on. This stuff is probably your best bet before you are looking at some major repairs and tear down to find where the issue is. Let me know if this works for you.
So if you used any stop leak ... I can 100% guarantee this crap clogged the coolant holes in your engine block ... You will have to take your engine down to the heads and get all of it out and most likely reopen these holes ... This exact thing happened to me with my 2002 Dodge caravan ... My block was completely plugged with that crap.
Bottom hose cool coolant to the engine. That means your radiator is working properly
Would this help me if the previous owner used stopleak for the head gasket? I’ve replaced the head gasket and have since replaced the water pump in the last 2 weeks.
Possibly. What kind of problem are you having?
I have a 93 nissan sentra with same problem . Did you go through this process twice with the product.?
I only did it once. I would be careful doing it more than once as this stuff is pretty strong. Did once not fix the issue?
@@ClintHolland strong in what sense. It's just soda ash
@@jackbagelz5010 Soda Ask is caustic and can damage metal if left in contact with it long enough. It's basically the opposite of an acid but can cause similar damage.
Yea from what I read on preston's version that it' protects against corrosion. And how you gonna flush out the particles that are blocking the hole or whatever it's doing.. maybe it's bonding the coolant into an oil idk
@@jackbagelz5010 You don't need this stuff to protect against corrosion. Antifreeze already does that. If you use stop leak in your system you need to get the cause of the leak fixed and then flush that junk out using the ThoroFlush.
Two questions please.
I just added bars leak a couple weeks ago. I have not had any problems and it seems to have stopped the leak. However I am concerned that it may cause future issues and want to remove any deposits. Does this replace the step of using another radiator flush product?
after doing this procedure can you instead use a product that is guaranteed not to harm your engine and radiator - bearsleak 🐻??
There is a good chance it will cause future issues but there is also a chance that flushing it will undo whatever was wrong. Before you flush it, you need to make sure you have had whatever caused the leak fixed. Once you do that, you can then flush it. And this is the only thing you will need to do to flush it. You don't need to use any other flush product but this one. I know Bars and other brands promise that they won't cause harm, but they are wrong. If you don't believe me, just do some searches on the Internet and you will find plenty of people with problems after using one of them.
@@ClintHolland thank you for your reply and help. I truly do appreciate it. I brought it to my other mechanic that has the ability to pressure test the system and he could not find a leak at all. So either the original diagnosis that made me put in the bars leak is wrong? Or the bars leak has stopped the leak so much that I cannot find a week. Do you recommend flushing out the bars leak we're leaving it in.? Surprisingly my mechanic was saying that if my vehicle was not experiencing overheating I could just run it the way it is for now. 2002 nissan pathfinder se, manual transmission, 130,000 miles.
@@TRUTHISABSOLUTE777 If you aren't having any trouble you may subscribe to the "if it isn't broke dont fix it" mentality. However, pay close attention to your engine temperature. It isn't uncommon for that stop leak to cause a problem later in life when it finally causes a blockage. I would at a minimum at least drain your system and refill it with fresh coolant though even if you aren't going to flush it.
@@ClintHolland ok thank you . Yhat seems very logical. Lii do that. It sounds like overheating would be the easiest sign of a problem to detect . I will stay dilligent to watch it.
My girlfriend's got a 2008 Tuscan, her AC was leaking and we put in stop leak to keep it. Every time we take it to a shop, they say that there's nothing they can do without a manual pump and no shops around here have one unfortunately. Do you think this would be able to solve our problem?
What exactly is the problem she is having with it?
Will thoroflush work on k&w sealer it clogged my coolant system on my Tahoe or what will someone recommend on using to unclogg my coolant system
I can't guarantee it will but it is certainly worth a try.
Snake oil
My radiator drain clogged up after the adding bars block sealer - it sealed the headgaskey leak but the radiator is jot doing so well - i will definite do the flushto see if the drain flows again
Definitely a good idea. The good news is that stuff is good at clogging up leaks. The bad news it is also good at clogging up leaks.
Can i use this if coolant is leaking through head gasket?
I would not recommend using this if you have an active leak. Get that leak fixed first.
Just fix the head gasket
Scotty kilmor says to leave this in with the coolant until it needs replacement
That's fine if your car isn't over heating. However, many people find that adding this to their car causes it to immediately start running hot. My opinion, stay away from this stuff. Go online and read all the horror stories from people who did and now their car is completely gummed up. Use it only in an emergency.
Leave what in? The stop leak or the flush?
@@RiffRaffMama. the stop leak of course. A flush is just replacing the old with new. Maybe you can get a special cleaner if it's really dirty then no don't leave that in. Make sure coolant is clean. The stop leak work by blocking the leak with some kind of particles. So you want to leave that in.
Extremely useful & informative.
+Lazaro Monteagudo Thank you.
What about the Bars Copper seal? it contains fiberglass. HOw do you get the fiber glass out?
You really don't but this is your best bet to get as much as possible out. You will never get all of it out but I definitely recommend you flush as much as you can out.
When you mix the solution does it matter if it's with tap water or distilled water
always use distilled in your coolant system
plain 'drinking water is perfect.... any that has been micro or R/O filtered.... It's NOT a battery LOL
Clint the video is a little fast trying to read the name of the bottle can you type the name hope I can get this just bought a car has stop leak in it nasty
It's called Thoroflush. Take a look in the video description and I have a link to it.
How do you put it in if you don't have a radiator cap
I would recommend disconnecting a radiator hose and pouring it in that way. I know it will be a little more work but if you are at the point of needing this, it's probably time for extreme measures.
@@ClintHolland i did not know because it says to drain 1 gallon of coolant
@@ClintHolland I done put in a new radiator it only trys to overheat with the ac on when I'm stopped but when I take off it goes back down
@@youcantstopme5136 You will still need to drain a gallon of coolant. If your radiator doesn't have a drain plug, you will have to disconnect the lower radiator hose for that as well.
@@youcantstopme5136 Check out your cooling fans that are behind the radiator. Typically when they stop working, it causes the exact problem you just described. Their job is to keep air flowing through the radiator when the vehicle isn't moving.
If this product to stop leak would be to dangerous for engines , why still for sale in every auto parts? Would've law suit for damaging engines already don't you think?
That's a great question and I don't have the answer. You probably agree not to sue when you use it. The problem is the stuff actually does work many times so it has a use case but you are definitely taking a risk when you use it. Hopefully the risk is less than the problem you are fixing.
@@ClintHolland , thanks, I don't have a leak just yet, I was just concerning . Now if a have a leak, I will for sure to replace radiator.
Do you recommend using Irontite all weather seal after the flush?? I have a minor head gasket leak and don't have the money to replace it. Any advice? Please and thank you.
Definitely. I am a big fan of their products.
Sounds like thermostat wouldn't open and stopleak clogged what little it did open up.
Not in this case. I had already replaced the thermostat. This stuff is known to stop up the small coolant passages and just generally coat many of the surfaces reducing heat transfer.
Hey can I use this if nothing wants to come out of the drain plugged ? I'm worried
The radiator drain plug I assume? If so, you will definitely have to unclog it or maybe disconnect one of the hoses on the bottom to get it to drain. But the plug being clogged wouldn't stop me from using this as long as I could find a way to get the radiator drained.
@@ClintHolland thanks alot bro
How did the thoro flush fix the heater core leak?
It didn't fix the heater core leak. The Bar's Stop Leak is what fixed it temporarily. I eventually replaced the heater core. Then I used ThoroFlush to flush out the Bars.
Think this would work with getting rid of blue devil? That gunked up my cooling system with the rock salt type deposits. Thinking my radiator is clogged with the stuff.
It wouldn't hurt. Is your engine running hot or hotter than normal since you used it?
Yes, it overheats after about 6 minutes.
I would certainly give it a try. If it doesn't help, might try looking at some other potential areas.
Hopefully you meant it had a Kool-Aid color rather than a Kool-Aid taste because somebody's going to try to taste it to see what it taste like.
Will this work on turbo charge car?
No reason it wouldn't.
What other flushes did you try before using the thoro flush?
I only tried the Prestone Flush before trying this.
I used bars stop leak and it sealed the leak. Now i would like to flush the radiator or should i. And if so which flush is safe to use
Depends on where your leak was. I recommend repairing or replacing whatever was leaking and then flushing the system.
What if you use Bars Head Gasket Sealant to fix an overheating issue, and then wait 3-4 weeks afterwards and have the system flushed professionally? Do you think it would undo the sealant job done by the Bars product?
@Jon Gee Very true. It would be quite difficult to find a leak that didn't exist anymore.
Bars leak clogged up my damn radiator, now I can't even drive my car because it's overheating so bad..
You have nothing to lose by giving this stuff a try.
True that
@Brad It's called ThoroFlush. Did you happen to watch the video? Not trying to be defensive here but the name of the product is covered starting at 2:14 in the video as well as in the description of the video. I even have a link in the description of where to purchase it at. You can get it at Amazon or most auto parts stores now. Autozone has started carrying it for some time now.
I put stop leak to seal a small leak in my radiator, it sealed it but then 1 hour later my head gasket blew... I need to get this stuff out where can i buy this product?
Amazon.com is the only place I know to buy it.
The Phenomenal Not going to fix blown head gasket.
Great vid. Did the Bar'sLeak stop your leak? Did the leak return after the flush? Based on your description your radiator had issues based on the overheating. How often did you replace coolant? You state you have used the Bars'Leak before without issues. So it does/has worked without issues for you? Thank you
I had a small leak in the past in my heater core and the stop leak fixed that right up. It lasted for months until I was finally able to replace it. However, this time the heater core literally exploded. It had a manufacturing defect and split almost 2 inches vertically. The stop leak slowed it but never fixed it.After all of this and replacing the heater core the truck always ran hotter than normal and would even overheat during the summer. I have flushed the radiator probably 2-3 times at this point. I usually do my flushes every 100,000 miles.
Okay, I think my leak is in the radiator. I loose about a quart every 10 days or so. So little at this point that after driving the car we cannot find any moisture anywhere. I have had it back into the shop three times for the coolant loss. Yesterday I finally was able to smell the coolant near the top right of the radiator. No odor form the other side. Thanks to your vid I think I will pass on the sealer and just add distilled water and water wetter for the summer and monitor the leak. If it gets worse the radiator will get replaced. Thanks for taking the time to reply!
Absolutely. You should only use Stop Leak in an emergency. If you are having trouble finding the leak, you can buy dye at most auto parts stores that you put in your coolant and it helps you find the leak.
@clintholland my car don't overheat but have residue I. my water reservoir will this work for that?
Jessie Urge a What kind of residue? From a stop leak product?
Clint Holland I put stop leak Bars pellets in my coolant reservoir bout a year ago I flushed it about a week ago because it looked like theyre was oil in it, but no water or white smudge on oil cap or stick...
I would definitely give this a try then.
Thanks!
I CALLED IRONTITE THEY SAID NOT TO USE THE WHOLE BOTTLE USE 1/2 BOTTLE TO A 3 1/2GALLON COOLING SYSTEM ALSO TIME IT FROM THE TIME THE MOTOR IS HOT TOTAL ABOUT 20 MINS WHEN MOTOR IS COLD
All I can go by is what their instructions say and they don't mention anything about one bottle per 3.5 gallons. You are correct about waiting for it to warm up though. irontite.com/zc/index.php?main_page=product_info&products_id=816
So how are you able to use this because after I use the bars gasket seal my car shakes like hell it won't even run it misfires so if I can't run the car how would you suggest I use this cuz I need to get that shit out of my system
I think it is a little too late for this in your case. Sounds like you had some coolant leak into the cylinders or possibly still leaking in there. If it is shaking, it is most likely a misfire caused either by the coolant leak or a fouled spark plug.
Clint Holland Yep cars a done deal...I have spark coolant wasnt leaking before the gasget.blew. but I think it happened was when I brought my car to Jiffy Lube they did not tighten the air filter intake and I believe they forgot to put oil in my car and that's why the gasket blew cuz I was not leaking any coolant at all nothing like I was fine before I went to Jiffy Lube and while I was driving the car I completely lost power completely shut off on me so I'll smoke from the engine pop the hood sound light and take air filter completely off and Jiffy Lube checks to filter so they have to unscrew the intake part of it whatever you call it well they never put it back on tight which is why I lost power so I put it back on on my way home is when the gasket blew started seeing smoke coming out of the rear like crazy just clouds of smoke came home park the car check out my coolant completely gone check the oil no oil at all in the car what's so ever so that is one I went and bought that stupid bars bullshit and put that in my car prior to me putting that in my car my car did start off I was able to drive it but now nothing it cranks but it's not starting I tried to see if maybe that stuff sealed it but no it didn't even feel it and my car was not overheating it all the 15 minutes while I was waiting like I have the product says to do and they say that it should work if your car is able to idle for 15 minutes well obviously it didn't work I tried putting water in the coolant tank the overflow tank cuz I didn't want to waste coolant just wanted to see if it was going to work took my oil cap off nothing but water in the oil and I haven't touched the car since
great info, thanks!
You have to run it 10-12 minutes after the engine has reached Normal temperaturas
Correct.
It just needa to get hot to clog the holes.. u don't need to flush it out after
By my vehicle for 3 grand it will cost you an extra grand to fix it because of the stop leak just saying my name is buddy and I approve this message outlaw stop leaks and stop the cons
The fill reservoir is the overflow right because it says if you don't have a radiator cap to put it in there
Yes. Usually a little small, plastic container right behind or next to the radiator.
Terrible on engines how? The head gasket? I might plan on changing it. Just to sell. Or I might do the Cash for Clunkers. Seal up the engine to pass smog to turn into the state for 1,500 Or fix the head gasket to sell.
It's known for clogging up the small passages that the coolant runs through and causing over heating.
Used this crap on my Cummins and it plugged up the bottom of my new radiator.
I get it. I swear for every car it fixes it causes issues with 2 other ones.
what ever you do never use any item like this too fix your radiator.... it will rune your engine...worst product ever.
Agreed. Not sure how they have gotten away for so many years saying it won't harm your engine.
where do you get the thoro flush from
try online
+Justin Scott thanks Justin I'm ordering it now
+Maurice Gillespie No Problem, and that is great.
NAPA has it in my town
Not much Input on Here about Guys Who used this IronTite Flush and if It undid Their Original Repair of the Head Gasket.
If the stop leak fixed your problem, I don't recommend using this stuff. It very well could undo the repair.
Thanks, Since My Comment The Barrs Leak Fix Failed plus added Overheating. . I have resolved the Problem. After Flushing Barrs Garbage , the Cooling Sys didn't cool fully. To fix the Prob of Overheating , I had the Remove the Radiator and wash out the Fiber Clog caused by Barrs Leak. Most Importantly I have discovered a Product on the Shelf at WMT located beside Barrs Leak called "K-Seal". It is amazing !!!!!! Fixed the Intake Leak and didn't clog the Rad.. On top of that , it is only 8 Oz. Time will tell , but so far no Coolant loss caused by the former Intake Leak.
Good to hear and thanks for sharing.
Going on several Weeks now , The K-Seal is the TRICK !!!......As a reminder , for those in a Mess with Barrs Leak , You prob need to remove the Rad and back Flush it to get out the Fuzzy Stuff Out. No Chem will do it. That Fuzz will get caught in the Tiny Openings in the Inlet Side and only a Backward Wash will get It out. To Prove My Point use a Fine Mesh Strainer to Test what comes out of the Rad. It will help You to assess if You got it All removed.
engine coolant leakage problem
does this stuff work? and can it remove 6 bottles of leakstop from your engine?
Does it work? Absolutely. 6 bottles however. I make no promises about that. Maybe try this along with a water flush that you see in one of my other videos.
Ur mom xD 6 bottles Jesus Christ man what are you smoking.
Build Beyond TV no shit. You notice they didn’t comment back. Cause they have no excuse for the stupidity
I am from Algeria How can I get this product?
Kaka Zdak order it
Use Drano.
J Campezzi bleach also works
It clogged my lines
Not shocked. This stuff can help in a pinch but it can also wreak havoc.
I need to flush out my power steering system. This stop leak bs should be banned from every vendors.
I want to agree with you and this stuff truly is evil but man did it save my butt once. It took a lot of effort to clean it out but I would have had a ruined vacation without this stuff.
Bars stop leak must be the brain child of an automotive engineer. Everything they come up with makes a mechanics life miserable. I would like to see one of them replace a heater core!
Amen. Couldn't have said it better myself. Just like the guys who design engines and cars never plan on someone having to actually work on them.
Replacing a 4runner heater core is more difficult than replacing an engine.
Never use any kind of chemicals to prevent or try and help/fix a problem. No real mechanic would ever tell you to do it. Only amateurs and green horn house wives use shit like that
Agreed. However, this stuff is used by a lot of actual mechanics and is way better than the alternative of having an overheating car or having any stop leak in your vehicle.
Never add this shit to your car. I added a powder and it fked up my entire cooling system including A/C matrix. Terrible stuff just get your car fixed it will save you thousands in the long run
don't use this stuff,it stopped up my radiator
The most common side affect from everyone who uses it. It has a purpose but in general it causes more harm than good.
Randy Simpson me too
Yes clogged mines up too. I know better next time. I'm never using this stuff again.
I meant the Bar Stop Leak shit
Funnels, dammit funnels! Wipe up your mess! Quit polluting the earth! Damn son! Your future children's children doubt want that shit in their water or playground!
Please do the internet a favor and before you choose to troll someone else do some research. The active ingredient in this flush is TSP. Yep, that's right TSP. The same ingredient in literally a 100 different household cleaners. It is considered so safe that the FDA says you can consume up to 70 grams per day, every day of your life without adverse side effects. Thanks for watching though. I appreciate it.
Half a video
that bars crap destroyed my land rover , ,
Obama Binladen how so? I have a Land Rover too, with a bunch of stop leak everywhere in the cooling system.
Obama Binladen oh nvm, you're talking about the stop leak, not the Ironrite flush.
Can this be used if you accidentally but radiator stop leak in your power steering system? 😬🫤
Wow. So the answer is no. This is water based and would not go well in your power steering pump.