Medium and Heavy Trucks

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Related Medium and Heavy Trucks Questions
Need to know the torque on the rocker arm assembly hold down
need to know the torque on the rocker arm assembly hold down for a c15 … read more
NicholasM1019
NicholasM1019
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Vocational, Technical or Trade School
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I have an 2006 c15 and my jakes arent working. the code my
hi i have an 2006 c15 and my jakes arent working. the code my scanner pulls up is pid: 122 Active Retarter solenoid med/hi short circuit … read more
Bradey V
Bradey V
Certificate
Catman, I have a customer with a C15 believe it is a BXS
Catman,I have a customer with a C15 believe it is a BXS we've been fighting a hard start and smoke for a while now, we have replace check valves in filter bases, check air in return line had air remov… read more
Cat Man
Cat Man
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Vocational, Technical or Trade Scho
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I have a peterbilt 2008 caterpillar engine C15 are smoking
Hello I have a peterbilt 2008 caterpillar engine C15 are smoking and lose power also have a sound on the engine I replace the turbos but still doing the same… read more
Cat Man
Cat Man
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Vocational, Technical or Trade Scho
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My 2007 357 Peterbilt stumbles randomly and emits unburned
Hi my 2007 357 Peterbilt stumbles randomly and emits unburned fuel smoke when it does.we changed injector harness. Had a check engine light on and it still ran ok checked the engine harness and found … read more
Bradey V
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I need injector trim files for MXS 77553 I have files for #1
I need injector trim files for MXS 77553 I have files for #1 and #2 injector. It is 550hp C15 acert. #3 injector is 5A5079371026, #4 is 5A507937132F … read more
catmastertech
catmastertech
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CatMan, can you explain the correct way to do a compression
CatMan, can you explain the correct way to do a compression test on a c15 cat using an adapter made to go into injector bore. Do I take all the rockers off so no valves open and then use the starter t… read more
Cat Man
Cat Man
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Vocational, Technical or Trade Scho
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Mr Catman, i have an issue with a c15 cat engine.. after is
Hello Mr Catman, i have an issue with a c15 cat engine.. after is sitting for 6 hours truck wont start up right away.. i think it might be a check valve that is not holding fuel. No more .. i need to … read more
Cat Man
Cat Man
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Vocational, Technical or Trade Scho
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CATMAN PLEASE 2006 Pete CAT C15 ACERT the coolant temp gauge
CATMAN PLEASE 2006 Pete CAT C15 ACERT the coolant temp gauge is acting up. seems like when the fan kicks on the guage starts acting up. it starts bouncing around and making the little red light in the… read more
Daniel Wilson
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Hey Cat Man,I have a Cat c15 serial prefix SDP. Jake brake
Hey Cat Man,I have a Cat c15 serial prefix SDP. Jake brake quit working and not able to bump up to high idle. Drove the truck a few miles and now white smoke coming out exhaust. What do you think happ… read more
Cat Man
Cat Man
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Cat et will not install the new injector trim files. error
Customer: cat et will not install the new injector trim files. error confirmation code is invalid … read more
Cat Man
Cat Man
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Catman, I asked you a question a few weeks ago regarding
Hey there catman, I asked you a question a few weeks ago regarding a “crank but no start” problem on a cat C15. It seems to be happening again. The truck in question is a 2007 peterbilt 379 (674827) c… read more
Cat Man
Cat Man
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Vocational, Technical or Trade Scho
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Cat 3406E 550hp missing and spewing blue smoke while going
Cat 3406E 550hp missing and spewing blue smoke while going through low gears backing up or turning, clears up at higher rpm. Normal idle.… read more
Cat Man
Cat Man
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Hi buddy I have a cat c15 2007 nxs model. Truck has had no
Hi buddy I have a cat c15 2007 nxs model. Truck has had no problems leading up to this point. truck just will crank and will not fire. I am going to check the check valve in the filter housing. Any ot… read more
Cat Man
Cat Man
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Vocational, Technical or Trade Scho
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I have a 2008 Peterbilt with a C15. It has kind of a miss,
I have a 2008 Peterbilt with a C15. It has kind of a miss, it's like someone cuts power to the injectors for a split second. It makes the engine shudder but gives no codes doesn't even kick off the cr… read more
Cat Man
Cat Man
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2007 Peterbilt with a C15 Caterpillar 475 hp (eng sn#MXS79829).
2007 Peterbilt with a C15 Caterpillar 475 hp (eng sn#MXS79829). Have a dead miss at the #2 cylinder. With the injector powered it has a dead miss and is smoking. When I shut the #2 injector off with E… read more
Cat Man
Cat Man
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Vocational, Technical or Trade Scho
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i have a cat c15 acert the engine vibrate very much on idealing
i have a cat c15 acert the engine vibrate very much on idealing and turns out to be ok when we increase rpm what could be the problem. need tune-up or something else.… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
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Hi there i have 2 trucks in our fleet that are totally baffling
Hi there i have 2 trucks in our fleet that are totally baffling me, both have a miss at low revs, 700-900rpms and at full revs 2120rpms 1 is a freightliner Argosy 2007 model and the other is a western… read more
Cat Man
Cat Man
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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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