That’s funny you had a chicken in the shop. Cause back when my wife worked at caterpillar, one of our chickens rode in the frame rail of her pickup to work one day and ended up running around the lot and had a bunch of the techs out chasing it around. Never did catch it.
@@Islandwaterjet yes but you also get rid of tens of thousands of your bottom line, the electronics aid immensely in getting more fuel economy and torque out of it at. I would agree the newer vehicles may have passed the point of having a good balance of tech to improve performance and simplicity for reliability.
Great video that shows what your “snoopdogging” troubleshooting technique has done: you saved the customer money by finding the exact problem of low fuel pressure was a solenoid vs. changing out a pump, and you enhanced your “cred” as a top notch diesel mechanic. 👍🏻👍🏻👍🏻
I love the Knipex tools...i have flush cutters, diagonal cutters, the plier wrenches and various snap ring pliers, never let me down. My German boss says it's "kneepex" fwiw.
The grass is always greener on the other side, But grass is always green. Consider yourself lucky you are not burned out and destroyed inside from the industry.
Given the extra layer of components and complexity in a HEUI system vs a common rail system, I have always wondered why Cat and Ford went with the HEUI for so long.
At the time heui was the best option for high pressure electronic fuel injection. Of course until common rail became standard. It’s very capable, as oil pressurized over the lower viscosity fuel easily creates desired injection pressure.
Keith Also back in the mid 90's when the HEUI system came out emissions weren't as tight. HEUI could provide the needed pressure. Standards got tighter requiring much higher pressures at the injector tip for greater fuel atomization. Common rail systems have tip pressures as high as 30,000psi. Common rail is more expensive, tolerances are way tighter to get the needed pressures.
Decades ago we found oil type and condition was the biggest factor in longevity and reliability with HUI motors, to the point 1.we ran remote oil system extra volume (ROS) 2. We ran extra bypass oil filters ( 7micron) 3.we ran centrifugal oil filtration ( spinner filter) 4.And a 4micron in line filter to HUI pump supply oil circuit. This gave good oil pump life, good viscosity longevity and exceptional HUI pump and solenoid valve life. This was an evolution in a large fleet addressing reliability issues thru failure analysis and trial and error over time but any one can do these upgrades quite easily and effectively if you have a HUI system, the only issue we saw was oil migration into injector harness but this seemed to become less of and issue as we removed more carbon from oil with filtration upgrades , oil seemed to be less conductive and didn't affect injector operation even though slight leakage from passthru plug still present
At the time of its development, it was the most technologically advanced Diesel fuel injection system that had ever been invented, quite a modern marvel to have an electronically controlled instead of mechanically controlled system. On top of that, you could change the power level at the click of a knob, or a reflash without changing any of the injection hardware. Ask the 12 valve guys about that one.
If you don’t like spraying starting fluid directly into the intake, if you have a second person handy, I always like to grab a shop rag and put a little gasoline on it and pop one of the air to air boots off and while your buddy is turning the key trying to start it, you’re spreading the rag right across the air to air. I personally just like doing that better than starting fluid, but I have used starting fluid many times lol. Great video
Gasoline has more resistance to Detonation under heat and pressure, called octane, where starting fluid is extremely volatile under heat and pressure, so I don't understand how Gasoline is going to start a cold engine better than starting fluid or diesel fuel for that matter.
@@goodmanboattransport3441 they don’t need much. A little bump of gasoline vapors and it’ll come to life. I’ve never locked a motor up with that technique. I’ve locked them up with ether though several times.
@@tywinters9462 Great care is required using ether, it doesn't take much and never let the glow plugs heat up, that's a recipe to blow up the intake on a diesel engine. I've found cranking until you get some smoke, then a quick 1/4 second shot gives that little bit of fire to light the cylinders
Nice video sir. One thing I always stress to customers is check your engine oil level first, if the injectors are passing oil into the fuel system, eventually the engine will die and have a hard time starting. I also remove the nut holding the solenoid for the Injection Actuation Pressure Control Valve and slide it off the IAPCV and use a 1-1/8 box end to loosen the valve. Keep up the good work 👍
Ah good call on those pliers! I hate those solenoids on the c13s. The fuel enable valve, the IVA oil control valve, and the CGI control valve solenoids always give me an issue. The nut gets stuck to the coil part and the whole damn thing spins. A normal wrench won't fit on the base. You have to grind it down to fit.
I had on old RV Cat that wouldn't run bottom feed tank .Tank had 2 inches of silt on bottom cleaned it out Runs like new got the RV for 2500 bucks Yee Haw Drove it to Canada and back to Florida .Cats rule!!
I'm a independent shop. Had open my door to back out a pickup. Backed out the truck, then all of a sudden a falcon flew in the shop and landed on a customer's 68 roadrunner. After it flew back out, I turned around and looked up on top of the roadrunner and there was a gopher, alive! That was exciting to chase out.
I have a 7.3 Powerstroke and to my knowledge they use this fuel system from Caterpillar. I was having an issue of the truck not starting and I found the Injection pressure was not high enough. I was only building 200 psi. I replaced the IPR from Ford which I'm sure they get from Cat. It solved my problem and I haven't had a problem since.
Fastest way to check ICP issues is dead heading the pump with a gauge. Or popping the valve cover off and physically checking for excessive oil leakage around injector seals while cranking or running.
I Air check for O-ring leaks,without pulling the cover...disconnect the HPOP supply,I use a fitting that taps right into the port...air it up to around 120-140psi ....then,take a plastic bag and wrap it around the breather tube and see if the bag expands,from the leaking,compressed air @ the injectors...as the compressed air will fill the block with pressure and vent out through the vent tube
And agreed...always deadhead....just make sure you have a gauge that is made for liquid and goes to 6k psi and also make sure the gauge hose is rated for up to 6000psi..Ive tried 2 wire 4000 psi hydro hose and it popped.
I've thought about that years ago when I would work on the 444 and 466s but was worried about tearing up a good pump by dead heading it if something else didn't give.
@@markwilliams4525 nope...wont hurt it one bit,as long as you do it for no more than 20 seconds at a time...as soon as you release the key from start,(left in on),The IPR valve will let it bleed back down..just make sure you use 6000psi 2wire hydraulic hose and a liquid gauge rated for 10000 psi...the gauge should jump up to about 4000psi,within 10-15 seconds
Great video! I have two 3126s in a small church bus fleet, this is exactly the sort of content that will come in handy someday. What is the part number of that block off tool? After recently getting set up with Cat ET, seeing you use it makes A LOT more sense. It seems to be a very simple and easy to use diag platform Thanks again and have a Merry Christmas season!
My bus / daily driver has shutters in front of radiator so we can put all the heat inside the bus to keep passengers warm in winter, shutters recently been misbehaving opening n closing while it doesn’t make sense like closed when warm engine or open when cold engine cold out. Has vacuum to engine block on an electrical sensor.
one time a crawfish somehow made its way into my shop, which is weird cause i live in pennsylvania, and the nearest body of water was like a mile away 😂
I had an oil pump break off one of my customer trucks because the front main cap was loose. Came in for a front main seal leak. One bolt was still holding on and I unknowingly pulled that bolt first and nearly dropped it on my face. Lol
Hey Ape, must say I enjoy watching your videos man, really edifying. Thank God I haven't experience some of the issues you talked about but atleast with what I learned I can use that to do a lot of preventative maintenance. Here's a question I want to ask you. I just got an 05 w900l. Coolant keep seeping through radiator cap. I recently change the cap b4 cause I lost the old one. The other day I saw my radiator cap turned almost half way. What do you think the issue is?
We used to remove output line install a line with tee 8000 psi guage plug the end of the tee, crank, dead head test should get near 4000 psi if it can then leak is an injector upstairs
Could you possibly do a video or give tips for rebuilding a c-15 acert for a freightliner cabover and are 2010 c-15 acert okay for California emissions law
@@yeahok115sure You can drive a C15 through California if it’s registered out of state. However you can’t pickup and deliver a short load within the state of course. There’s no way they can stop trucks that are emissions compliant for the model year they were manufactured. Make sure it doesn’t blow smoke, keep the big mufflers on, and regularly clean the pipes, you’re good. They can only push around and bully trucks that are registered in CA, actually all those trucks are deleted out of their system so even if you tried to add a filter or make your truck compliant you legally can’t anymore. Anyways if the DOT sees your truck is super clean, everything is in compliance, and you don’t have tons of chrome, lights, and crap all over it they’ll leave you alone with your old engine. They know you’re moving important supplies to keep their state functioning. It’s all they got left. If more truckers stop going to CA that state would most certainly collapse.
I always believe the higher the idle the less strain on the engine. As soon as I get oil pressure I bump it up to 1k. The engine sounds much better and the oil pump has more power to move that cold oil.
04:23 how dare you?!?
Who let you in ? Lol
Gretta is that you, Jk what's up Peg?
You know It's a good channel when peg is watching.. P.S. always great content...
Two of my fav diesel guys!
Slave lake's getting jealous that this can isn't near it!
This video helped me diagnose my 7.3 powerstroke crank no start. You explain the heui system much better than any other video I’ve seen. Thank you
That’s funny you had a chicken in the shop. Cause back when my wife worked at caterpillar, one of our chickens rode in the frame rail of her pickup to work one day and ended up running around the lot and had a bunch of the techs out chasing it around. Never did catch it.
I worked a shop where turkeys roamed locally.
And when you are face to face with (let’s be honest, a RAPTOR)
Never underestimate a bird.
One good thing about heui engines is it's hard to hurt one due to oil pump failure or running it out of oil ECT because no oil psi won't run
Um hpfp sending metal through the system don’t hurt a thing lol
Some people like to throw sh*t at all these newfangled electronics, but I found them very useful when diagnosing school bus engine problems.
@@Islandwaterjet yes but you also get rid of tens of thousands of your bottom line, the electronics aid immensely in getting more fuel economy and torque out of it at. I would agree the newer vehicles may have passed the point of having a good balance of tech to improve performance and simplicity for reliability.
Great video that shows what your “snoopdogging” troubleshooting technique has done: you saved the customer money by finding the exact problem of low fuel pressure was a solenoid vs. changing out a pump, and you enhanced your “cred” as a top notch diesel mechanic. 👍🏻👍🏻👍🏻
As I watched this video lot's of memories were brought back. I miss my Freightliner 3126 CAT
Knipex makes great stuff. Stings a little paying for them, but no regrets.
I’ll second that. They make quality tools. Their adjustable plier wrenches are awesome.
Ye first hand pliers I've bought where the teeth don't get immediately chewed up on steel
they sell them at menards..not to bad on price there..
I have knipex pliers that my grandfather brought back with him from Germany at the end of WWII and I absolutely love them.
I have rarely been disappointed with a USA-made, or European-made tool. Knipex being Made in Germany, of course.
You should have charged him for a set of spark plug wires and spark plugs while you're at it.lol great video 😎😎
I love the Knipex tools...i have flush cutters, diagonal cutters, the plier wrenches and various snap ring pliers, never let me down.
My German boss says it's "kneepex" fwiw.
Knipex, with a short "i". Dont know where your boss is from in germany, but he is wrong. We say it like that here, lol
@@Catluke96 not my tongue so no clue here...but great tools either way.
@@drrrrockzo I'm from northern Germany, we say Kneepex round here...
i really love watching your videos even though I am no tech but I wish that I have gotten into the field 40 years ago.
The grass is always greener on the other side,
But grass is always green.
Consider yourself lucky you are not burned out and destroyed inside from the industry.
Glad you posted the part number for the IAP solenoid block off. Need to get me one. Like your videos.
It is nice to see another video from you, Josh! Hope Thanksgiving was good, and Christmas is better!
That chicken better be careful around all those Cats.
From my experience with powerstrokes, it's almost always the IPR.
Given the extra layer of components and complexity in a HEUI system vs a common rail system, I have always wondered why Cat and Ford went with the HEUI for so long.
At the time heui was the best option for high pressure electronic fuel injection. Of course until common rail became standard. It’s very capable, as oil pressurized over the lower viscosity fuel easily creates desired injection pressure.
Keith Also back in the mid 90's when the HEUI system came out emissions weren't as tight. HEUI could provide the needed pressure. Standards got tighter requiring much higher pressures at the injector tip for greater fuel atomization. Common rail systems have tip pressures as high as 30,000psi. Common rail is more expensive, tolerances are way tighter to get the needed pressures.
Decades ago we found oil type and condition was the biggest factor in longevity and reliability with HUI motors, to the point
1.we ran remote oil system extra volume (ROS)
2. We ran extra bypass oil filters ( 7micron)
3.we ran centrifugal oil filtration ( spinner filter)
4.And a 4micron in line filter to HUI pump supply oil circuit.
This gave good oil pump life, good viscosity longevity and exceptional HUI pump and solenoid valve life.
This was an evolution in a large fleet addressing reliability issues thru failure analysis and trial and error over time but any one can do these upgrades quite easily and effectively if you have a HUI system, the only issue we saw was oil migration into injector harness but this seemed to become less of and issue as we removed more carbon from oil with filtration upgrades , oil seemed to be less conductive and didn't affect injector operation even though slight leakage from passthru plug still present
At the time of its development, it was the most technologically advanced Diesel fuel injection system that had ever been invented, quite a modern marvel to have an electronically controlled instead of mechanically controlled system. On top of that, you could change the power level at the click of a knob, or a reflash without changing any of the injection hardware. Ask the 12 valve guys about that one.
Ford never used HEUI themselves, they were using Navistar engines.
well done mr.josh honestly you are intelligent man
Glad your back. Always enjoy the uploads
The Knipex plier wrench is currently my favourite tool, super handy.
If you don’t like spraying starting fluid directly into the intake, if you have a second person handy, I always like to grab a shop rag and put a little gasoline on it and pop one of the air to air boots off and while your buddy is turning the key trying to start it, you’re spreading the rag right across the air to air. I personally just like doing that better than starting fluid, but I have used starting fluid many times lol. Great video
Gasoline has more resistance to Detonation under heat and pressure, called octane, where starting fluid is extremely volatile under heat and pressure, so I don't understand how Gasoline is going to start a cold engine better than starting fluid or diesel fuel for that matter.
@@goodmanboattransport3441 they don’t need much. A little bump of gasoline vapors and it’ll come to life. I’ve never locked a motor up with that technique. I’ve locked them up with ether though several times.
@@tywinters9462
Great care is required using ether, it doesn't take much and never let the glow plugs heat up, that's a recipe to blow up the intake on a diesel engine. I've found cranking until you get some smoke, then a quick 1/4 second shot gives that little bit of fire to light the cylinders
@@goodmanboattransport3441 I don’t disagree. Yea you just have to be careful. I’m not against using ether, I always keep a can with me in a pinch.
Nice video sir. One thing I always stress to customers is check your engine oil level first, if the injectors are passing oil into the fuel system, eventually the engine will die and have a hard time starting. I also remove the nut holding the solenoid for the Injection Actuation Pressure Control Valve and slide it off the IAPCV and use a 1-1/8 box end to loosen the valve. Keep up the good work 👍
apprentice here, what will loosening the valve accomplish?
@@busterscruggs3031 which valve are you referring to??
@@dougbaer5752 sorry, the iapcv
When you remove the IAPCV, you can put the test plug in and dead head the HEUI pump.
@@dougbaer5752 cheers thanks, I'm just learning electronic fuel systems in school right now
Ah good call on those pliers! I hate those solenoids on the c13s. The fuel enable valve, the IVA oil control valve, and the CGI control valve solenoids always give me an issue. The nut gets stuck to the coil part and the whole damn thing spins. A normal wrench won't fit on the base. You have to grind it down to fit.
Always learning new piece of useful information watching your videos. Thanks a lot!
Nice to see a man with consistent diagnostic abilities and he also works for an equal opportunity employer!
Wtf? Lol
It would be great to see more vids from you. It's always so interesting.
amazing vids
That stuff in the spray can, is called "majic in a can" ! 😃 Great Video, THANKS
JPaydirt calls it "Start You Bastard".
I have one of those Knipex plier wrench things, I like it but prefer the basic water pump pliers (knipex) because they grip better and are narrower.
Ah the good old cats, sweet video bro, nice change of scenery
I have a small pair of knipex pliers like that and they're great often a go to tool
those Knipex are great! and they are non marring...
Thanks for the video. Love the troubleshooting stuff.
I had on old RV Cat that wouldn't run bottom feed tank .Tank had 2 inches of silt on bottom cleaned it out Runs like new got the RV for 2500 bucks Yee Haw Drove it to Canada and back to Florida .Cats rule!!
Missed the videos happy to have a new one.
Thank You again for all Your 3126 guidance , bought my 2002 GMC T-7500 / 3126 new .... use Your Amazon Affiliate link often
Wow, a new vid from “the ape” AND snow!! It’s an early Christmas! 🎄
Thanks for coming in today 🤙
Another great and informative video Josh. Keep ‘em coming
What diagnostic software are you using?
Great video, btw!! Thank you for everything you post!
I'm a independent shop. Had open my door to back out a pickup. Backed out the truck, then all of a sudden a falcon flew in the shop and landed on a customer's 68 roadrunner. After it flew back out, I turned around and looked up on top of the roadrunner and there was a gopher, alive! That was exciting to chase out.
Cab was filthy!
I have a 7.3 Powerstroke and to my knowledge they use this fuel system from Caterpillar. I was having an issue of the truck not starting and I found the Injection pressure was not high enough. I was only building 200 psi. I replaced the IPR from Ford which I'm sure they get from Cat. It solved my problem and I haven't had a problem since.
Sweet diag for the Hei pressure test. I was betting the shutoff was bad. Coulkd you feel it knock when activated?? Good catch!
You are a genius man.
Won’t start that’s great! That’s exactly what I said earlier today with my 01 f650 3126b!
Love your informative videos 👍
Fastest way to check ICP issues is dead heading the pump with a gauge. Or popping the valve cover off and physically checking for excessive oil leakage around injector seals while cranking or running.
I Air check for O-ring leaks,without pulling the cover...disconnect the HPOP supply,I use a fitting that taps right into the port...air it up to around 120-140psi ....then,take a plastic bag and wrap it around the breather tube and see if the bag expands,from the leaking,compressed air @ the injectors...as the compressed air will fill the block with pressure and vent out through the vent tube
And agreed...always deadhead....just make sure you have a gauge that is made for liquid and goes to 6k psi and also make sure the gauge hose is rated for up to 6000psi..Ive tried 2 wire 4000 psi hydro hose and it popped.
I've thought about that years ago when I would work on the 444 and 466s but was worried about tearing up a good pump by dead heading it if something else didn't give.
@@markwilliams4525 nope...wont hurt it one bit,as long as you do it for no more than 20 seconds at a time...as soon as you release the key from start,(left in on),The IPR valve will let it bleed back down..just make sure you use 6000psi 2wire hydraulic hose and a liquid gauge rated for 10000 psi...the gauge should jump up to about 4000psi,within 10-15 seconds
@@markwilliams4525 its actually what international/Navstar calls for when diaging the HPOP
I've been hoping you'd do an upload soon, but it's a double win with the 3126.
I can wait until the next video when we find out the chicken has been promoted to management.
It would probably do a better job lol
Great video! I have two 3126s in a small church bus fleet, this is exactly the sort of content that will come in handy someday. What is the part number of that block off tool?
After recently getting set up with Cat ET, seeing you use it makes A LOT more sense. It seems to be a very simple and easy to use diag platform Thanks again and have a Merry Christmas season!
Block off tool's part number is in the description :)
Dam good battery or no compression 😅
Can you do a toolbox tour
My bus / daily driver has shutters in front of radiator so we can put all the heat inside the bus to keep passengers warm in winter, shutters recently been misbehaving opening n closing while it doesn’t make sense like closed when warm engine or open when cold engine cold out. Has vacuum to engine block on an electrical sensor.
Just put cardboard on the front.
I wish I lived close by your shop. In BC those guys would have changed everything until it was fixed.
Another great video Josh!
do you have the cat number for the dummy valve
Great video keep up the great work very informative
Had a 5.9 with very similar conditions
I dislike the C7 but the 3126 seems to much more reliable. We still have a couple of them where I work.
From my experience they’re loud, burn lots of oil, and like to throw rods.
I can’t find the cat block off tool anywhere, so you have a link?
Did you ever find the number for the bloke off ?
The dummy solenoid that you used in the video. Any chance you may have a part number for it ?
Yes please send part no.
The fact that Adept could troubleshoot this fault so quickly means that the problem is very common and experience is key to success
Great video. Very informative.
LOL, the chicken not surprised. It is northern (your state 😁) amazing but different people. Amazing content!
Do you have the pn for that dummy solenoid plug
Keep it up buddy 😎
Thank you Terry.
"Poultry-based employee" 🤣🤣🤣
Killed me. Love the wordplay.
one time a crawfish somehow made its way into my shop, which is weird cause i live in pennsylvania, and the nearest body of water was like a mile away 😂
I had an oil pump break off one of my customer trucks because the front main cap was loose. Came in for a front main seal leak. One bolt was still holding on and I unknowingly pulled that bolt first and nearly dropped it on my face. Lol
Good job quickly fix n cheep
I'd love to come out oo retirement and work with you. Great Videowork with you.
Great job. Your the man
I had the same thing going on over thanksgiving with my 3126 unfortunately i had to do 2 heui pumps and injector o rings
what is the block off tool part#
Great video man, any chance you can share the part# for that dummy actuator?
Thanks in advance
Love the videos buddy
gotta watch out working around them chickens, they tend to have a FOWL mouth!, bwahaha. Keep up the good work Josh.
Hey Ape, must say I enjoy watching your videos man, really edifying. Thank God I haven't experience some of the issues you talked about but atleast with what I learned I can use that to do a lot of preventative maintenance. Here's a question I want to ask you. I just got an 05 w900l. Coolant keep seeping through radiator cap. I recently change the cap b4 cause I lost the old one. The other day I saw my radiator cap turned almost half way. What do you think the issue is?
got a part number for that block of plug
its always amazing to watch your videos.....is there any colleague who works on hydraulic side? please refer me his channel,thanks
Nice Video Josh....
It’s just like a 7.3 ipr valve same function
I from TOGO 🇹🇬 Africa country
Maybe you could start that chook off sweeping the floor then move it up to oil changes.
Im from Canada , Do you have an amazon link for the knipex tool? I really want to support your channel
What is the block off tool # for 3126 cat heui
Did you ever find the number for the block off tool for the HEUI ? Thanks
Tnx the vidio i get many about HEUI
How can I get in touch with you I need help ASAP with my 3406 b timing advance
We used to remove output line install a line with tee 8000 psi guage plug the end of the tee, crank, dead head test should get near 4000 psi if it can then leak is an injector upstairs
Where you get those gloves ?
What was the part # on the silnoid
Had the same problem with an International HEUI engine
Will we see more of our new feathered mascot?
Any common reasons for a c12 to lose prime instantly after shutting it off? Also takes a lot of cranking and some ether to get it going
Do you have the part # for the test plug?
I love knipex been using them for years.
In the description ?
Outstanding!
The chicken is the best part of the video lol
Could you possibly do a video or give tips for rebuilding a c-15 acert for a freightliner cabover and are 2010 c-15 acert okay for California emissions law
2010 acert are not legal anymore in comifornia
Nope
The only way you’re gonna drive a C15 in California is if it’s registered in another state.
@@markm0000 and you don’t get a inspection
@@yeahok115sure You can drive a C15 through California if it’s registered out of state. However you can’t pickup and deliver a short load within the state of course. There’s no way they can stop trucks that are emissions compliant for the model year they were manufactured. Make sure it doesn’t blow smoke, keep the big mufflers on, and regularly clean the pipes, you’re good. They can only push around and bully trucks that are registered in CA, actually all those trucks are deleted out of their system so even if you tried to add a filter or make your truck compliant you legally can’t anymore. Anyways if the DOT sees your truck is super clean, everything is in compliance, and you don’t have tons of chrome, lights, and crap all over it they’ll leave you alone with your old engine. They know you’re moving important supplies to keep their state functioning. It’s all they got left. If more truckers stop going to CA that state would most certainly collapse.
Where do you get the dummy solenoid?
C15 ACERT how long after staring can I go on High idle ?? What should my oil pressure be when running normal ??
I wait till it idles up to normal itself, when it's cold it idles a few hundred rpm lower, when it picks up to normal idle I jump it up.
I always believe the higher the idle the less strain on the engine. As soon as I get oil pressure I bump it up to 1k. The engine sounds much better and the oil pump has more power to move that cold oil.
It won’t start? Did you check the carburetor?
so they are using starting fluid with a grid heater? how does that work out