Another exceptional how to video. You are a bastion of knowledge on these great old cars and your presentation and production skills are just excellent! Only because I know you care about quality will I point out that on the “warning and disclaimer” the word “your” is repeated on line 3. Thank you for all the effort you put into your vids!
I just installed a Dewitts in my 97 and the hoses were dated from 97. They were original. I decided to go ahead and switch those out. They weren't bad but I felt like 27 years was long enough haha.
@tmoney99296 I didn't replace the sensors as they work fine but the hoses were definitely old haha. She sits nice and cool now in traffic with the temps in Florida being over 100. Before the dewitts it would get up to 230 within a matter of minutes.
@@Toys4LifeI replaced my original hoses on my 1998 C5 with Silicone. Now I have leaks at several connections and 2 different shops hasn't been able to figure out why. So I'm wondering if the Silicon hoses are a mistake 🤔 Both shops have cut some of the hoses where the clamps had punctured them. And still leaking coolant. Any advice would be helpful. Thanks for all the great content👍
Last item on checklist: after several days of normal operation; recheck the coolant level and add coolant if needed and if low, check again for any leaks.
I have subscribed for over one year. I bought a C5 50th Anniversary edition from Corvette World in Dallas in January 2024 and transported it to a friend's home near St. Louis. I will visit the car for the first time on August 27 as we caravan to the Corvette Museum in Bowling Green for their 30th Anniversary celebration and will then trailer the Vette home to southern California. Thanks Toys4Life C5!
You might pick a warmer day or use a heated garage. I did mine at about 45F and it would not go over 199 consistently. I would rev to 3000 and it would go 201 momentarily and then back to 199. As a consequence I was only able to get about 3.5 quarts out. So now the interesting thing: I pulled the radiator hose and removed the thermostat. That only netted me 1 more quart. I then jacked up the rear of the car which only gave me about another half quart. Where's all my coolant? I know for a fact it was full when I started.
my man i have bought my first C5 and sadly it is a basket case how ever your knowledge and obvious experience with them has been helping me greatly especially with this since i just changed thermostat, water pump and t-stat housing with new radiator and upper and lower hoses. thx for the informative content keep it up
As always, very Informative... Good luck finding any shop that will go that extra mile, or even come close to your level of professionalism. The term GED, use to be H.S. equivalency diploma. Now it means "Good Enough Dude"😢
Was told over 20 years ago to not use Dexcool by two GM mechanics when doing a coolant change. Go with green coolant as it doesn't turn to mud in the system.
There is a quite a bit of interesting history there (and there were absolutely issues back in the day with DexCool (perhaps an old formulation) and certain engines. If you research it comprehensively I believe you will come to the conclusion that in 2024 the best choice for C5's is DexCool. Has to do with metal and plastics/nylon compatibility. Here is a good watch to understand the history. Open Cooling systems introduced air to the equation back in the day which played a role as what materials were used in the gaskets. VERY INTERESTING. Good summary is here ---> ruclips.net/video/mWnOBahaK5Y/видео.html
Just got an 04 zo6,gonna drain out that crappy dexcool and fill back up with prestone concentrate and distilled water never use tap water,I've got an 02 s2000 with 250k and only use prestone original radiator, water pump,and thermostat, just drain and fill once a year!hope this helps, peace
I work in the food industry. PG as we call it is used extensively in any cooling systems that could potentially leak into a food product. PG is also one of the primary solvents that flavor compounds are dissolved in before being used in a beverage.
Excellent video on this procedure. It is on my list to accomplish this year on my 2002. Do you do anything with the heater during this procedure? I seem to remember cranking the heater up during one of the steps.
No…. GM dealers drain it by taking off the bottom hose and fill it with the cap off and car running with the heat on high aimed at the floor with the front end of the car lifted up some to get all the air out of the lines.
@@Toys4Life No sir your video is magnificent! I plan on doing this to my 2004 C5 Z06 when the weather warms up. Just to be clear you just added the 50/50 Dex Cool mix to the system you didn't dilute further correct?
Another exceptional how to video. You are a bastion of knowledge on these great old cars and your presentation and production skills are just excellent! Only because I know you care about quality will I point out that on the “warning and disclaimer” the word “your” is repeated on line 3. Thank you for all the effort you put into your vids!
I just installed a Dewitts in my 97 and the hoses were dated from 97. They were original. I decided to go ahead and switch those out. They weren't bad but I felt like 27 years was long enough haha.
Good idea to replace everything rubber and all sensors
@tmoney99296 I didn't replace the sensors as they work fine but the hoses were definitely old haha. She sits nice and cool now in traffic with the temps in Florida being over 100. Before the dewitts it would get up to 230 within a matter of minutes.
👍 Nice - Did you go with rubber or silicone?
@@Toys4Life What do you recommend
@@Toys4LifeI replaced my original hoses on my 1998 C5 with Silicone. Now I have leaks at several connections and 2 different shops hasn't been able to figure out why. So I'm wondering if the Silicon hoses are a mistake 🤔
Both shops have cut some of the hoses where the clamps had punctured them. And still leaking coolant. Any advice would be helpful. Thanks for all the great content👍
Last item on checklist: after several days of normal operation; recheck the coolant level and add coolant if needed and if low, check again for any leaks.
i’ve been using nothing but blue moon beer for my coolant for the last 13 years in my c5 no issues
🤔 ummmmm...
24 years of oem dexcool. What the manufacturer recommends is always tried and true.
I have subscribed for over one year. I bought a C5 50th Anniversary edition from Corvette World in Dallas in January 2024 and transported it to a friend's home near St. Louis. I will visit the car for the first time on August 27 as we caravan to the Corvette Museum in Bowling Green for their 30th Anniversary celebration and will then trailer the Vette home to southern California. Thanks Toys4Life C5!
Wow, that will be a great trip! Enjoy 😊
You might pick a warmer day or use a heated garage. I did mine at about 45F and it would not go over 199 consistently. I would rev to 3000 and it would go 201 momentarily and then back to 199. As a consequence I was only able to get about 3.5 quarts out. So now the interesting thing: I pulled the radiator hose and removed the thermostat. That only netted me 1 more quart. I then jacked up the rear of the car which only gave me about another half quart. Where's all my coolant? I know for a fact it was full when I started.
my man i have bought my first C5 and sadly it is a basket case how ever your knowledge and obvious experience with them has been helping me greatly especially with this since i just changed thermostat, water pump and t-stat housing with new radiator and upper and lower hoses. thx for the informative content keep it up
I appreciate that, sir!
@Toys4Life nah I appreciate the time and effort it takes to put this up on you tube thank you
As always, very Informative... Good luck finding any shop that will go that extra mile, or even come close to your level of professionalism. The term GED, use to be H.S. equivalency diploma. Now it means "Good Enough Dude"😢
That is funny and sad at the same time!
Everybody should watch this video!
Was told over 20 years ago to not use Dexcool by two GM mechanics when doing a coolant change. Go with green coolant as it doesn't turn to mud in the system.
There is a quite a bit of interesting history there (and there were absolutely issues back in the day with DexCool (perhaps an old formulation) and certain engines. If you research it comprehensively I believe you will come to the conclusion that in 2024 the best choice for C5's is DexCool. Has to do with metal and plastics/nylon compatibility. Here is a good watch to understand the history. Open Cooling systems introduced air to the equation back in the day which played a role as what materials were used in the gaskets. VERY INTERESTING. Good summary is here ---> ruclips.net/video/mWnOBahaK5Y/видео.html
Just got an 04 zo6,gonna drain out that crappy dexcool and fill back up with prestone concentrate and distilled water never use tap water,I've got an 02 s2000 with 250k and only use prestone original radiator, water pump,and thermostat, just drain and fill once a year!hope this helps, peace
Thanks once again for your knowledge you share on the c5's. You share a lot involved in making it right
I appreciate that!
Another great video, with all the explanation needed. Thanks and I will be using this information to complete my coolant swap out soon.
Glad it helped
I use Amsoil propylene glycol and distilled water. The propylene glycol is less toxic than ethylene glycol.
I work in the food industry. PG as we call it is used extensively in any cooling systems that could potentially leak into a food product. PG is also one of the primary solvents that flavor compounds are dissolved in before being used in a beverage.
Amsoil coolant is too expensive. Not willing to spend that much just for coolant
Excellent video on this procedure. It is on my list to accomplish this year on my 2002. Do you do anything with the heater during this procedure? I seem to remember cranking the heater up during one of the steps.
Thank you! No sir, I believe that's old school heater core valving you on different models.
Good stuff as usual ty!
Glad you enjoyed it
Great video bud! Thank you
Glad you liked it!
Hello would you recommend flushing system with just water or should I add a Prestone coolant flush bottle?
Great
No…. GM dealers drain it by taking off the bottom hose and fill it with the cap off and car running with the heat on high aimed at the floor with the front end of the car lifted up some to get all the air out of the lines.
That's how I do it with other engines with the T-stat up on top of the engine - but with the T-stat down low on the LS engines I don't do it this way.
thanx
You're welcome!
I’m a bit confused. You filled up to the cold fill line with 50/50 dex cool. The you add one part water at the 6;38 time mark?
Sorry about that, I kept track of everything and it's pretty close to 50/50, maybe 49/51 or vice versa.
@@Toys4Life No sir your video is magnificent! I plan on doing this to my 2004 C5 Z06 when the weather warms up.
Just to be clear you just added the 50/50 Dex Cool mix to the system you didn't dilute further correct?
@ Correct.
@@Toys4Life Thank you once again for a wonderful tutorial!
Same for c6?
Sorry... posted on wrong thread! My bad!
Woah.
have you changed your c6 coolant? Is the process similar?
VERY similar indeed!