Thank you! 25 years as a general automotive mech with a bent towards Euro imports, I had just enough diesel info to keep a VW truck or MB wagon running ;) NOW due to some inherited family issues, I am the proud(?) owner of a 2006 C7 in a box truck with 200K on the clock. Two hours of watching your vids, I have learned more than than I have been able to find in three weeks! As a certain actor sed: "I'll be back!" Thanx again!
@@randygonzalez6250 that former governor really should've retired after his acting career started declining, as much as i admire him for his bodybuilding and his acting, his politics are beyond me
Thanks for all you do for the wrench turners. I am a mechanic for morbark and I used your videos for reference for CAT engine service in our shop. Unfortunately, we just do fluids and basic stuff to engines, we dont have the time or manpower to do full fledged engine work. Thanks again man!
I'm a maint tech for a deere dealership. We see many trucks on the hook. Friday it was the fish hatchery crew, so it's great to have fact based insight toward their problem.Thanks for posting. M.
Thanks for the info, I am committed to a purchase of a 2008 Ford 650 and to my surprise it has a CAT engine. This info was not shared with me online, before I took the hour long drive to lay eyes on the truck. That reason was! the dealership does not have the authority to sale a commercial vehicles, I assume insurance or some other governing in there industry, however I test drove the truck and it ran fine although it seems to have an automatic engine break whenever I let off the accelerator the engine would slow itself down. But it is a beast of a truck! This is what brings me here. It is a AS IS! sale and there mechanics have no clue about this truck and they normally offer an inspection /diagnosis IN HOUSE. and Like you would imagine things got all slippery during the closing stages of the sale and I felt like I may be getting screwed. asking price $ 25,597. I got them to $24,497. Whata re the first things I should do with this truck to insure it's road worthy and I made a good purchase???
A couple of the oldest trucks in our fleet have these engines, and I just starting pulling an air compressor on one of them. Never really done this big of a job (at least in the engine bay) so wish me luck.
Love your content and how thorough you are yet speaking to a basic level of knowledge! Please keep the vids coming! I collect busses and you have saved me a lot of time!
93-1 got a fuel pressure voltage high which indicates an open circuit. Well your video guided me to the back which has a fuel pressure sensor on the left side of the regulator that was unplugged.
I find your videos very helpful for my understanding, I myself am an apprentice with Hastings Deering Cat® from Papua new guinea in the pacific. But we come under an Australian region dealership. Im glad to know you make these sorts of videos. Please continue the great videos , really is good stuff.
Keep coming back to your channel for more!! I have a question Got a c7 in my Sterling flatbed, power steering fluid god dumped out on the way back from a 30 mile drive. Pouring out of the reservoir itself. Can’t find any leaks, I put some pressure (10psi) to the reservoir itself to see if any vacuum hoses would leak but still nothing. It has the hydra boost brake booster so the brakes are tied into the power steering system. When I turn the steering wheel (with front end jacked up) left, the fluid level goes down, then turn right and it goes up in the reservoir. What makes it super pressurized is when I hit the brake pedal, almost instantly it’ll fill the reservoir and piss out of the cap. Thought the PS filter was clogged, changed it out and still pouring fluid. I have 3 things that are pretty pricey that I could replace: Power steering pump on the engine Brake booster on the truck Or steering gear. I’ve been doing some reading and apparently all of my symptoms point to the power steering pump itself. I’m planning on going to the CAT dealer in the morning but just wanted a second opinion. Thanks for all of the videos man I literally chop veggies/bbq to them when I make food lol even the ones that don’t directly apply to me I call it “learning ahead”
well I stalled out the other night and it wouldn't start. I assumed it was filters. changed both and when I prime it I'm not getting resistance as it should. below the heui pump is where I'm hearing a hissing like noise. when I get it to prime at all it will fire up and run until it loses fuel I suppose. I'm obviously not a mechanic but good with working on my vehicles. had it towed to my house with hopes it was filters. the water separator was disgusting with what looked like mud or rust. I just bought the truck and few months ago. thank you very much for the response and rest assured I will be making a contribution once I know how!
+jeffrey katits You should email me at AdeptApe@yahoo.com It's easier to respond to comments that way. If you had rust in your filter, inspect those fuel tanks for deterioration. I would hook up a fuel line out of a bucket to isolate your suction side. You should watch my fuel system troubleshooting video if you haven't yet.
I enjoy all your videos and I want to thank you for for sharing your knowledge you make everything clear and I thank you again and take care and God bless
Watching this years later because i just pulled a c7 head to discover cylinder walls 456 all had major scouring. Figured "i wonder if this is common". Unfortunately no😂
Does the computer make a difference if it’s a c7 or a high horse power c7 cause of the electronic waste gate actuator and if it is if I swap computers do I need to swap the engine harness as well?
I had the fan hub assembly seize while driving through AZ. The belt shredded and the fan fell off. I was lucky it didn't also destroy my year old radiator and CAC, but it still cost almost $3K when it was all done.
Weve been trying to narrow down a dead #5 cyc on a bus, now im thinking maybe something failed with the lifters. I didn't know that was a problem we've tried everything else so maybe this is the next step
I worked on a 963 with a c7 bullshit spot for the side motor mounts had to either remove the cab or get a bunch of old service manuals to use as a booster so I could tighten it
So glad for the information. I really thought my motorhome had a great engine. After this video,I am convinced it is not. I gather the oil changes are most important. I would think an oil filter between the huei pump and the injectors would be a good idea.
Just came across your video, very helpful We were supposed to buy a RV that was advertised to have a 300 hp Cummins but found out it had the 350hp C7. Should we pass on this MH because of the C7?
Love your video's, I've watch these when i had a 3126 and I'm back because i believe i have a C7 in my 2006 Tiffen 40 ft motorhome. last week it was on it's way to Alabama from Philly PA, ran like a champ down the the Virginia North Carolina border and then it went bad. I wasn't there, a buddy of mine had it, he said it started blowing some black smoke, had a small vibration and then shut down, would crank and is now in a yard in NC. After watching your video i'm curious if the high pressure oil system could lock things up without really damaging the lower portion of the motor. I'm feeling like this is a blown motor but i am very limited on my diesel knowledge, if it was a gas motor i would know a little more, but i'm looking for some very educated info. My 2nd question would be, if this is a blown motor and i need to replace this do i have to replace it with a C7 or could i put another Cat motor in there instead. I really appreciate any help or advise you might have because I have to fix this, the motorhome is very nice with the exception on this issue.
I have cimilar engine.. Cat c7 2007. Freightliner.. Nocking noise sometimes Specially when taking off stepping on gas Or on hight speed verly Did valve adjustment, did replaced all 6 injectors. ( No trim files were programmed) Any ideas ,,
I have a 3126 that has a air intake heater. The relay feeding power to the preheater is good. What tells the relay to turn on. It's in a 1998 chevy truck
I'm looking to buy a 2005 motorhome with a C7. It's got 57000 miles with a nice record of oil changes. Should I buy it or not? This video got me scared!
I have a 2008 f650 with a cat c7s engine that will not manually regen, the cat dealership says it's the ard head, but my question is could it be the fuel supply going to the ard head. When it starts the manual regen it will try for a few minutes before it fails. There is an ard after treatment nozzle that was corroded and it fell off when checking it. Would it make sense that the other lines could be plugged or corroded and not allowing the regen process to complete?
Did the BAE military JLTVs in the 2007 to 9 range get the screwy C7 with the S or were they the good old fashioned ones? It's says they were 2007 EPA compliant. Would hope with their multifuel requirement the defense department would get the engines without the emissions noose. Been web searching and I'm not smart enough to find it.
I have a rear engine bluebird, c7. What oil should I use on this engine. Am I reading it correctly, I'm pretty sure it said 10W30..?? All the videos I see guys are using 15W40..help!!!
I am having starting problems with a 3208 CAT, starting with easy start but not on it's own, trying to find glow plugs or heating element but can't see them anywhere, DOES IT HAVE THEM ?
all valuable information.......does the C7 have the plastic plugs to keep the gudgeon pin in?.....and is it possible to read error codes without a Cat laptop?
C7 in a cat 324D Excavator, I have a oil leak, it looks to be coming from behind the engine computer, looks like some sort of inspection plate? Maybe for the push rods? Are those known to leak? I need to remove the computer to really see whats going on, but im kinda just look for some input, or is there something else that might be leaking that im not seeing with computer in place? Engine has 12k hrs on it.
I wonder why the caterpillar engineers didn't add a second exhaust valve. There's two intake valves and only one exhaust valve. Exhaust valve is a little larger (intake valve is 1.578 vs. 1.697 exhaust. I believe the exhaust valve also opens larger.
1:15 if the fuel pressure regulator went bad would that cause an injector skip? I've been chasing an injector skip on cylinder 1 for a while now in my 2008 ford f650 tow truck
Around my GMC 7500 K to the scanner and he said he had a high oil pressure voltage hi that’s what he has said on the sensor so but I don’t know what’s wrong with you can you recommend something in the video or tell me what to do or where the sensor is located at the video but I can’t
This is fantastic!!! Thank you so much for this info. I have a cat year 2000 3126 and it runs great. I'm looking at a 2005 C7. I've seen this video and is there anyway in inspecting the truck with c7 to see if there are any HEUI problems? Hard cold start, smoke? What can I look for that could be a deal breaker onsite with no tools really? Truck has 150,000.
+n9878f Without a way to communicate with the engine, the best way would be start it when it's cold, look for any stumbling or surging, then run it at different rpms up to operating temperature. You should have them take it to a Dealer that could plug into it and pull any diagnostic codes if there are any. Usually they won't charge anything just to pull codes.
Do you have an email address where I can reach out to you trying to figure something out on my cat C7. Just replace my huei system and the high pressure hose but have a small oil drip that I can’t figure out. Thanks
Looking at 03 Chevy 6500 with the c7..was told the motor was rebuilt at some point...truck has 218k miles I believe or 280k. But with rebuild, 100k miles...there is oil in the coolant but there isn't any coolant in oil. What do you think? Possible cooler, cracked head somewhere?
adept . I have a 3126 rv engine that has flodded the oil pan with diesel and rand for 1 hour. should entire engine be rebuilt due to dilution? it has pretty good blow by
ok....subscribed! been watching your videos for 3 nights now! my 2005 f650 rollback is down. was driving down the road accelerating and went dead....engine just shut down...coasting along just windmilling. towed back to shop started checking simple stuff first....found the fuel in the tank was dark, couldn't even see light through it. did some research and found this could happen because of bad o-rings on the injectors. changed O-rings reinstalled injectors...still no start! pumping primer pump and heard fuel running back into tank...thought fuel pressure regulator was stuck open...replaced it and still no start! disconnected fuel line from primary filter to transfer pump, put line in a jug full of clean diesel...primed about 20 times ,still no start. hooked up fuel pressure gauge , pumped primer about 20 times again, builds pressure up to about 50 pounds with primer and then bleeds down....can hear fuel running back to tank. crank engine, no pressure...thinking transfer pump...any ideas before I buy a new transfer pump and should I change the heui and the transfer pump together? oh and I had read 2 codes on the check engine flashing light....26 and 39
+James Conarton Alright, thanks for watching. So the oil consumption was probably the HEUI oil getting pushed into the fuel tank and then getting burned. So hopefully by getting the injector seals changed fixed that. If you aren't building any fuel pressure, you've already change the regulator and ran it out of the bucket then it sounds like the transfer pump is the next on the list. The transfer pump can be changed without changing the HEUI pump, but you'll want to remove the HEUI pump off the engine to do it. The HEUI pump is about 5x as expensive as the transfer pump, so if the HEUI pump is okay I would definitely reuse it. The transfer pump has a special bolt that comes with it to hold the pump together when you change it so be careful. Let me know what you find. Is the tach showing a signal?
ok update...the bolt on the front was almost all the way out and the gear was hanging off.! is this common and do you think this is our only problem? do we just reinstall it or is there a special process? and also thank you for the quick response!
I am working on a C7 on a bus and I am getting a active and inactive injector mechanical no response code. Does that call for a injector replacement right off the bat? or should I do the fuel verification test? and other tests that you may recommend???? any and all help that you can give would be greatly appreciated
I'm doing a new exhaust seat number 5 cylinder. For some reason to drop the valve seat. Chewed up the top of the piston a few scratches in the cylinder. Trying to locate maybe a oversized piston for that cylinder. Does anybody know if they sell oversize Pistons?
I have a really dumb question. I just got a new service truck with a cat c7 never worked on a c7 before and have no idea about them and the whole huei pumps and all but do they have a fuel temp sensor and if so what’s the location.
Question about the c7. I have a cat 963c track loader that has the c7 in it. It has very nicely landed a present in my lap by presenting itself a valve drop....... My question to you is can I use cylinder heads and blocks off on-highway applications by just switching over all the stuff? New heads are almost non-existent and the ones I did find are around 5k Any information on using the block and head from an on-highway application to an off-highway application would be greatly appreciated
Sir I have questions? C7 caterpillar engine Tamrock drill ranger 800.. new engine overhaul already.. when coolant temperature getting 150f the coolant coming out to radiator reservoir line why is like that? Thanks
Any chance you could tell why I'd be getting a code 102 07-13 turbo waste gate issue. We applied air pressure to the waste gate and it open and closed. What else should we look for? FYI, I'm getting a buzzer and stop engine and check engine lights when pushing done on the accelerator. 2005 Cat C7 in a Itasca Meridien.
Great Video's! I just bought a 2003 Peterbilt 330 SA dump truck with a Cat 3126B. My Water Temp gauge on the pannel does not work but my ECM see the water temp. Do they have more than one water temp sensor on the engine? One for Gauge and one for ECM?
Hi josh, I have 2005 cat c7 in Kenworth t300 with allison automatic transmission. The engine runs good however every time Iam fully stopped in gear, my engine rpm fluctuates between 700-800 rpm. Any Help Would be really appreciated. Thanks
Other then injectors leaking fuel, have you experienced any other failures with the head or pump leaking fuel? Looking at a truck, but it has fuel in the oil. Betting its an injector. (Well hoping, don't know)
I have a 3126B on my F-350 truck, I replace the inyectors seals because I have oil into the fuel system and after I replace the seals it still passing oil, should I have to replace inyectors cups? What is the chance to have a head crack on this engines?
Ive got a GMC C7 moving truck broken down in Columbus OH. Looking for a reliable and honest mechanic... Any direction or assistance would be greatly appreciated.
Hi, just bought a F750 bucket truck with the C7 ,159k miles. Truck was repossession and had sat in a holding yard for 15 months. Was turned in voluntarily and truck was running and hydraulics/bucket all operating. Getting it towed to my mechanics yard for start up and repair. What are some things to watch out for in a truck sitting this long and not running. Not abused or uncovered just sitting. Any suggestions would be appreciated. Thanks RC
+ralph campisi That's a long time to not start an engine, would probably say to try and tap into the oil rail and pump fresh oil through the engine, then change the oil and filters, dump in fresh fuel, prime the fuel system, probably need new batteries, but other than that you don't need to do anything special.
You got a part number for that fuel regulator? For a 3406 c7? Can't find it on cat sis My formans friend got a truck that cranks but wont start. Said the manual fuel priming pump won't get hard. Don't have the serial number, got a rando one online to try and use cat sis but can't find it. Thanks!
i noticed that you didn't identify the sensor in the hooey pump. i know that that sensor is serviceable unless the complete pump is purchased which is (non-since) why it cant be purchased without buying the complete pump. but my question is is the sensor known as the fuel pressure or a fuel temp sensor or both ? at whayne supply my parts guys is hesitant to answer this question....
Hello sir I have a c7 in my bucket truck today it would not start after showing up to a job it cranks and everything like normal we sprayed a little starting fluid and it fired right up and ran like normal no issues just doesnt start on it's own idk if you may know what the problem is any help is greatly appreciated
Thank you!
25 years as a general automotive mech with a bent towards Euro imports, I had just enough diesel info to keep a VW truck or MB wagon running ;)
NOW due to some inherited family issues, I am the proud(?) owner of a 2006 C7 in a box truck with 200K on the clock. Two hours of watching your vids, I have learned more than than I have been able to find in three weeks!
As a certain actor sed: "I'll be back!"
Thanx again!
As a certain governor said *"screw your freedom"* lol
@@randygonzalez6250 that former governor really should've retired after his acting career started declining, as much as i admire him for his bodybuilding and his acting, his politics are beyond me
Thank you! I’m going to look at a school bus tomorrow with a C7. This taught me so much.
Thanks for all you do for the wrench turners. I am a mechanic for morbark and I used your videos for reference for CAT engine service in our shop. Unfortunately, we just do fluids and basic stuff to engines, we dont have the time or manpower to do full fledged engine work. Thanks again man!
I'm a maint tech for a deere dealership. We see many trucks on the hook. Friday it was the fish hatchery crew, so it's great to have fact based insight toward their problem.Thanks for posting. M.
Thanks for the info,
I am committed to a purchase of a 2008 Ford 650 and to my surprise it has a CAT engine. This info was not shared with me online, before I took the hour long drive to lay eyes on the truck. That reason was! the dealership does not have the authority to sale a commercial vehicles, I assume insurance or some other governing in there industry, however I test drove the truck and it ran fine although it seems to have an automatic engine break whenever I let off the accelerator the engine would slow itself down. But it is a beast of a truck! This is what brings me here. It is a AS IS! sale and there mechanics have no clue about this truck and they normally offer an inspection /diagnosis IN HOUSE. and Like you would imagine things got all slippery during the closing stages of the sale and I felt like I may be getting screwed. asking price $ 25,597. I got them to $24,497. Whata re the first things I should do with this truck to insure it's road worthy and I made a good purchase???
I'm not even a diesel guy, but man you make some really great content!
+998 Squid Thanks for watching the videos, I try to make them professional as a guy talking into a camera about engines can be.
Adept Ape They are professional! But don't let your inner creativity go to waste either!
All the videos are helpfull
Learned a lot from your videos I'm a mechanic in the army and we use 3126 and c7 on strikers and are always having problems
Saw one of these in a buddies shop in CO, man oh man would I love to swap this into a pickup.
+Michael Ray They are simple engine that can get a lot of torque (860 ft lbs) but are quite expensive.
A couple of the oldest trucks in our fleet have these engines, and I just starting pulling an air compressor on one of them. Never really done this big of a job (at least in the engine bay) so wish me luck.
Love your content and how thorough you are yet speaking to a basic level of knowledge! Please keep the vids coming! I collect busses and you have saved me a lot of time!
This video is extremely informative and helpful to navigate around your c7. Great video.
93-1 got a fuel pressure voltage high which indicates an open circuit. Well your video guided me to the back which has a fuel pressure sensor on the left side of the regulator that was unplugged.
I find your videos very helpful for my understanding, I myself am an apprentice with Hastings Deering Cat® from Papua new guinea in the pacific. But we come under an Australian region dealership. Im glad to know you make these sorts of videos. Please continue the great videos , really is good stuff.
Is it safe to buy a 2007 pete 330 with 300k miles with c7 , its a flatbed tow truck. Thanks
Keep coming back to your channel for more!!
I have a question
Got a c7 in my Sterling flatbed, power steering fluid god dumped out on the way back from a 30 mile drive. Pouring out of the reservoir itself. Can’t find any leaks, I put some pressure (10psi) to the reservoir itself to see if any vacuum hoses would leak but still nothing.
It has the hydra boost brake booster so the brakes are tied into the power steering system.
When I turn the steering wheel (with front end jacked up) left, the fluid level goes down, then turn right and it goes up in the reservoir. What makes it super pressurized is when I hit the brake pedal, almost instantly it’ll fill the reservoir and piss out of the cap. Thought the PS filter was clogged, changed it out and still pouring fluid.
I have 3 things that are pretty pricey that I could replace:
Power steering pump on the engine
Brake booster on the truck
Or steering gear.
I’ve been doing some reading and apparently all of my symptoms point to the power steering pump itself. I’m planning on going to the CAT dealer in the morning but just wanted a second opinion.
Thanks for all of the videos man
I literally chop veggies/bbq to them when I make food lol even the ones that don’t directly apply to me I call it “learning ahead”
I was reading issues and automatically thought power steering pump. Did you get it fixed and how many miles are in your c7? Do you like it overall?
well I stalled out the other night and it wouldn't start. I assumed it was filters. changed both and when I prime it I'm not getting resistance as it should. below the heui pump is where I'm hearing a hissing like noise. when I get it to prime at all it will fire up and run until it loses fuel I suppose. I'm obviously not a mechanic but good with working on my vehicles. had it towed to my house with hopes it was filters. the water separator was disgusting with what looked like mud or rust. I just bought the truck and few months ago. thank you very much for the response and rest assured I will be making a contribution once I know how!
+jeffrey katits You should email me at AdeptApe@yahoo.com
It's easier to respond to comments that way. If you had rust in your filter, inspect those fuel tanks for deterioration. I would hook up a fuel line out of a bucket to isolate your suction side. You should watch my fuel system troubleshooting video if you haven't yet.
I enjoy all your videos and I want to thank you for for sharing your knowledge you make everything clear and I thank you again and take care and God bless
Watching this years later because i just pulled a c7 head to discover cylinder walls 456 all had major scouring. Figured "i wonder if this is common". Unfortunately no😂
Does the computer make a difference if it’s a c7 or a high horse power c7 cause of the electronic waste gate actuator and if it is if I swap computers do I need to swap the engine harness as well?
News to you, I work in a Caterpillar engine plant and Cat makes the Perkins engines. And we make a lot of them.
I had the fan hub assembly seize while driving through AZ. The belt shredded and the fan fell off. I was lucky it didn't also destroy my year old radiator and CAC, but it still cost almost $3K when it was all done.
Weve been trying to narrow down a dead #5 cyc on a bus, now im thinking maybe something failed with the lifters. I didn't know that was a problem we've tried everything else so maybe this is the next step
Good Eveing! Wanted to how turn your C7 engine manually...
Where is the number was stamped on the block ?
I worked on a 963 with a c7 bullshit spot for the side motor mounts had to either remove the cab or get a bunch of old service manuals to use as a booster so I could tighten it
I'm on my way.
To buy a 2009 c7 30k miles it has the serial number s
but it is before 2009, so should I be worried about any missions?
Hi! What are the common problems or recommendations you can give on a C7s?
Can you go into detail on the fuel system on the c7s please
So glad for the information. I really thought my motorhome had a great engine. After this video,I am convinced it is not. I gather the oil changes are most important. I would think an oil filter between the huei pump and the injectors would be a good idea.
Cat makes a kit that includes oil supply line , filer housing and mounting.
Are there people in the marketplace offering reprograming of the C7 ECM, aside from Caterpillar. For deleting certain engine components, for example.
Just came across your video, very helpful
We were supposed to buy a RV that was advertised to have a 300 hp Cummins but found out it had the 350hp C7.
Should we pass on this MH because of the C7?
Thank you for your great and helfull information Sir
Hey i have a c7 in a school bus. I have low indicated oil pressure, but the oil level is good. Should i change the oil to see if the oil is just old?
Love your video's, I've watch these when i had a 3126 and I'm back because i believe i have a C7 in my 2006 Tiffen 40 ft motorhome. last week it was on it's way to Alabama from Philly PA, ran like a champ down the the Virginia North Carolina border and then it went bad. I wasn't there, a buddy of mine had it, he said it started blowing some black smoke, had a small vibration and then shut down, would crank and is now in a yard in NC. After watching your video i'm curious if the high pressure oil system could lock things up without really damaging the lower portion of the motor. I'm feeling like this is a blown motor but i am very limited on my diesel knowledge, if it was a gas motor i would know a little more, but i'm looking for some very educated info. My 2nd question would be, if this is a blown motor and i need to replace this do i have to replace it with a C7 or could i put another Cat motor in there instead. I really appreciate any help or advise you might have because I have to fix this, the motorhome is very nice with the exception on this issue.
HI QUESTION HOW CAN I DONATE ALSO CAN SPEED SENSORS CAUSE BLOW BYE OIL LEAK
I have 05 freightliner with car c7 I been getting barometric code what do I need to do?
I have cimilar engine..
Cat c7 2007.
Freightliner..
Nocking noise sometimes
Specially when taking off stepping on gas
Or on hight speed verly
Did valve adjustment, did replaced all 6 injectors. ( No trim files were programmed)
Any ideas ,,
Great... 👍
How would you know if the turbo is not working?
When the C7 is warmed up and you have been running for 60 mins, what is the normal idle oil pressure at a stop light?
Thank you
I have a 3126 that has a air intake heater. The relay feeding power to the preheater is good. What tells the relay to turn on. It's in a 1998 chevy truck
Can you start a C7 with starting fluid and no computer ?
I am looking at purchasing a 2007 F750 with a 7.2 liter C7 Is that the early or the late serial number?
We have a caterpillar engine no problem of starting but after few minute it's soto itself. That use to drive fintec crusher
I am looking at a 2005 rv with 8,500mi that has not had the overhead run.
I'm looking to buy a 2005 motorhome with a C7. It's got 57000 miles with a nice record of oil changes. Should I buy it or not? This video got me scared!
Could you convert this engine to run in a 2008-2010 ford truck?
Where is the fuse that controls the alternator because my new alternator won't charge. I have a 2004 GMC C7500
I have a 2008 f650 with a cat c7s engine that will not manually regen, the cat dealership says it's the ard head, but my question is could it be the fuel supply going to the ard head. When it starts the manual regen it will try for a few minutes before it fails. There is an ard after treatment nozzle that was corroded and it fell off when checking it. Would it make sense that the other lines could be plugged or corroded and not allowing the regen process to complete?
Did the BAE military JLTVs in the 2007 to 9 range get the screwy C7 with the S or were they the good old fashioned ones? It's says they were 2007 EPA compliant. Would hope with their multifuel requirement the defense department would get the engines without the emissions noose. Been web searching and I'm not smart enough to find it.
I have a rear engine bluebird, c7. What oil should I use on this engine. Am I reading it correctly, I'm pretty sure it said 10W30..?? All the videos I see guys are using 15W40..help!!!
i really missed you bro! cheers from Mexico! God Bless You!
Thanks, good information 👍🏻👍🏻😎😎
Is the 2004 Huey pump C7 block the same as the high pressure 2008 common rail C7
Are the injector supposed to pool around the base of the injectors we are suspecting a leak on 3 of the injectors but they aren’t spraying out
I am having starting problems with a 3208 CAT, starting with easy start but not on it's own, trying to find glow plugs or heating element but can't see them anywhere, DOES IT HAVE THEM ?
all valuable information.......does the C7 have the plastic plugs to keep the gudgeon pin in?.....and is it possible to read error codes without a Cat laptop?
C7 in a cat 324D Excavator, I have a oil leak, it looks to be coming from behind the engine computer, looks like some sort of inspection plate? Maybe for the push rods? Are those known to leak? I need to remove the computer to really see whats going on, but im kinda just look for some input, or is there something else that might be leaking that im not seeing with computer in place? Engine has 12k hrs on it.
Need help on c7 cat intake hose close up at hight rpm.
I wonder why the caterpillar engineers didn't add a second exhaust valve. There's two intake valves and only one exhaust valve. Exhaust valve is a little larger (intake valve is 1.578 vs. 1.697 exhaust. I believe the exhaust valve also opens larger.
Hello can someone give me a video where you can see how the engine heater is immersed. thanks
1:15 if the fuel pressure regulator went bad would that cause an injector skip?
I've been chasing an injector skip on cylinder 1 for a while now in my 2008 ford f650 tow truck
I would just change that fuel pressure regulator and check the fittings on your injectors
What makes intake longer hose close at high rpm.
Do you know where I can get the metal formed heater hoses? I have a 2007 sterling L8500.
What happens if it's blowing white smoke when I push the gas pedal to drive or when I'm driving
Around my GMC 7500 K to the scanner and he said he had a high oil pressure voltage hi that’s what he has said on the sensor so but I don’t know what’s wrong with you can you recommend something in the video or tell me what to do or where the sensor is located at the video but I can’t
Greet video but how to bleed air without a primer pump
This is fantastic!!! Thank you so much for this info. I have a cat year 2000 3126 and it runs great. I'm looking at a 2005 C7. I've seen this video and is there anyway in inspecting the truck with c7 to see if there are any HEUI problems? Hard cold start, smoke? What can I look for that could be a deal breaker onsite with no tools really? Truck has 150,000.
+n9878f Without a way to communicate with the engine, the best way would be start it when it's cold, look for any stumbling or surging, then run it at different rpms up to operating temperature. You should have them take it to a Dealer that could plug into it and pull any diagnostic codes if there are any. Usually they won't charge anything just to pull codes.
I have an oil leak Coming from the intake side, front corner... it doesn’t leak at idle. I cannot locate it. Any suggestions?
Do you have an email address where I can reach out to you trying to figure something out on my cat C7. Just replace my huei system and the high pressure hose but have a small oil drip that I can’t figure out. Thanks
Looking at 03 Chevy 6500 with the c7..was told the motor was rebuilt at some point...truck has 218k miles I believe or 280k. But with rebuild, 100k miles...there is oil in the coolant but there isn't any coolant in oil. What do you think? Possible cooler, cracked head somewhere?
Will this engine work well on a 2008 freightliner m2? What would you advise?
adept . I have a 3126 rv engine that has flodded the oil pan with diesel and rand for 1 hour. should entire engine be rebuilt due to dilution? it has pretty good blow by
What is your opinion on propane injection kits for additional power.
ok....subscribed! been watching your videos for 3 nights now! my 2005 f650 rollback is down. was driving down the road accelerating and went dead....engine just shut down...coasting along just windmilling. towed back to shop started checking simple stuff first....found the fuel in the tank was dark, couldn't even see light through it. did some research and found this could happen because of bad o-rings on the injectors. changed O-rings reinstalled injectors...still no start! pumping primer pump and heard fuel running back into tank...thought fuel pressure regulator was stuck open...replaced it and still no start! disconnected fuel line from primary filter to transfer pump, put line in a jug full of clean diesel...primed about 20 times ,still no start. hooked up fuel pressure gauge , pumped primer about 20 times again, builds pressure up to about 50 pounds with primer and then bleeds down....can hear fuel running back to tank. crank engine, no pressure...thinking transfer pump...any ideas before I buy a new transfer pump and should I change the heui and the transfer pump together? oh and I had read 2 codes on the check engine flashing light....26 and 39
oh and I forgot to mention heavy oil consumption....about 1.5 gallon in about 300 miles!
+James Conarton Alright, thanks for watching. So the oil consumption was probably the HEUI oil getting pushed into the fuel tank and then getting burned. So hopefully by getting the injector seals changed fixed that. If you aren't building any fuel pressure, you've already change the regulator and ran it out of the bucket then it sounds like the transfer pump is the next on the list. The transfer pump can be changed without changing the HEUI pump, but you'll want to remove the HEUI pump off the engine to do it. The HEUI pump is about 5x as expensive as the transfer pump, so if the HEUI pump is okay I would definitely reuse it. The transfer pump has a special bolt that comes with it to hold the pump together when you change it so be careful. Let me know what you find. Is the tach showing a signal?
ok update...the bolt on the front was almost all the way out and the gear was hanging off.! is this common and do you think this is our only problem? do we just reinstall it or is there a special process? and also thank you for the quick response!
I am working on a C7 on a bus and I am getting a active and inactive injector mechanical no response code. Does that call for a injector replacement right off the bat? or should I do the fuel verification test? and other tests that you may recommend???? any and all help that you can give would be greatly appreciated
I'm doing a new exhaust seat number 5 cylinder. For some reason to drop the valve seat. Chewed up the top of the piston a few scratches in the cylinder. Trying to locate maybe a oversized piston for that cylinder. Does anybody know if they sell oversize Pistons?
Anyone know where I can find oil gauge pressure sensor on c7 2005
Thank you
I love all your videos.. Watching your videos I've learned a lot I'm 27 years old and I want to be a cat man someday like you
jesus torres do it!! I'm 29 and staring my apprenticeship at my cat dealer
+jesus torres Thank you and go for it, no reason not to do that if you want to work on heavy equipment.
I have a really dumb question. I just got a new service truck with a cat c7 never worked on a c7 before and have no idea about them and the whole huei pumps and all but do they have a fuel temp sensor and if so what’s the location.
Question about the c7. I have a cat 963c track loader that has the c7 in it. It has very nicely landed a present in my lap by presenting itself a valve drop....... My question to you is can I use cylinder heads and blocks off on-highway applications by just switching over all the stuff? New heads are almost non-existent and the ones I did find are around 5k Any information on using the block and head from an on-highway application to an off-highway application would be greatly appreciated
Sir I have questions? C7 caterpillar engine Tamrock drill ranger 800.. new engine overhaul already.. when coolant temperature getting 150f the coolant coming out to radiator reservoir line why is like that? Thanks
Any chance you could tell why I'd be getting a code 102 07-13 turbo waste gate issue. We applied air pressure to the waste gate and it open and closed. What else should we look for? FYI, I'm getting a buzzer and stop engine and check engine lights when pushing done on the accelerator. 2005 Cat C7 in a Itasca Meridien.
The more problems i hear about the C7 the more i love my 3306
This is great. Thank you so much!
Great Video's! I just bought a 2003 Peterbilt 330 SA dump truck with a Cat 3126B. My Water Temp gauge on the pannel does not work but my ECM see the water temp. Do they have more than one water temp sensor on the engine? One for Gauge and one for ECM?
Hi josh, I have 2005 cat c7 in Kenworth t300 with allison automatic transmission. The engine runs good however every time Iam fully stopped in gear, my engine rpm fluctuates between 700-800 rpm. Any Help Would be really appreciated. Thanks
Does the turbo need to come to change the oil cooler on the C7 ?
just curious. just purchased a F650 with c7 cat with 26k miles. truck seems sluggish from a stop. wondering if this is normal? thanks
+JERRY SKOPP What is the boost while you are accelerating?
Other then injectors leaking fuel, have you experienced any other failures with the head or pump leaking fuel?
Looking at a truck, but it has fuel in the oil. Betting its an injector. (Well hoping, don't know)
I have a 3126B on my F-350 truck, I replace the inyectors seals because I have oil into the fuel system and after I replace the seals it still passing oil, should I have to replace inyectors cups? What is the chance to have a head crack on this engines?
Does this apply to the modern 2020 C7 Cat engine that comes in a 330 Cat excavator
Ive got a GMC C7 moving truck broken down in Columbus OH. Looking for a reliable and honest mechanic... Any direction or assistance would be greatly appreciated.
Hi, just bought a F750 bucket truck with the C7 ,159k miles. Truck was repossession and had sat in a holding yard for 15 months. Was turned in voluntarily and truck was running and hydraulics/bucket all operating. Getting it towed to my mechanics yard for start up and repair. What are some things to watch out for in a truck sitting this long and not running. Not abused or uncovered just sitting. Any suggestions would be appreciated. Thanks RC
+ralph campisi That's a long time to not start an engine, would probably say to try and tap into the oil rail and pump fresh oil through the engine, then change the oil and filters, dump in fresh fuel, prime the fuel system, probably need new batteries, but other than that you don't need to do anything special.
Definetly needs batteries. Thanks for the quick response and enjoy the holidays.
Just bought a bus with the c7. Acts sluggish around 65 mph. What’s the best way to get ahold of you?
thanks for the video
You got a part number for that fuel regulator? For a 3406 c7? Can't find it on cat sis
My formans friend got a truck that cranks but wont start. Said the manual fuel priming pump won't get hard. Don't have the serial number, got a rando one online to try and use cat sis but can't find it. Thanks!
i noticed that you didn't identify the sensor in the hooey pump. i know that that sensor is serviceable unless the complete pump is purchased which is (non-since) why it cant be purchased without buying the complete pump. but my question is is the sensor known as the fuel pressure or a fuel temp sensor or both ? at whayne supply my parts guys is hesitant to answer this question....
He didn't give me what I want. You can give me what I want. Thank you very much.
Hello sir I have a c7 in my bucket truck today it would not start after showing up to a job it cranks and everything like normal we sprayed a little starting fluid and it fired right up and ran like normal no issues just doesnt start on it's own idk if you may know what the problem is any help is greatly appreciated