Medium and Heavy Trucks

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Related Medium and Heavy Trucks Questions
2006 kw t8. The jake brake will not turn on. No light on
2006 kw t8. The jake brake will not turn on. No light on dash or anything. The buttons on the steering wheel and the clock spring under the steering wheel have been replaced … read more
NicholasM1019
NicholasM1019
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Vocational, Technical or Trade School
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I IN FRAMED A CAT ACERT C15 ENGINE LAST WEEK. TRUCK MADE ONE
HELLO , I IN FRAMED A CAT ACERT C15 ENGINE LAST WEEK. TRUCK MADE ONE RUN AND BLEW HEADGASKET WORSE THAN THE PREVIOUS HEAD GASKET. I HAD COUNTERBORE CUT, ALL NEW HEIGHT READINGS WERE .005 AND .006 ALL … read more
NicholasM1019
NicholasM1019
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We have a cat mxs c15 here in shop customer complaint of low
We have a cat mxs c15 here in shop customer complaint of low power I checked multiple items fuel pressure air Etc customer also said it was intermittent we went and road tested it had good power no pr… read more
Cat Man
Cat Man
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Vocational, Technical or Trade Scho
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2005 w900 with C15 Acert MXS12238. Low boost, truck will
2005 w900 with C15 Acert MXS12238. Low boost, truck will never go above 31.5 lbs no matter the load. EGT's also stay low and never go above 600F after turbo loaded or unloaded. No boost leaks found, s… read more
Cat Man
Cat Man
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Can you put thr wrong air gov on a c15 cat engine. Air
Can you put thr wrong air gov on a c15 cat engine. Air pressure only building up tp 30 psi … read more
Curtis B.
Curtis B.
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I have a 2006 C15 CAT engine in a Peterbilt truck. I put a
I have a 2006 C15 CAT engine in a Peterbilt truck. I put a fuel pressure gauge on it to monitor the fuel pressure. The fuel pressure will go from 70 to 100 pound of pressure. When it reaches 100 pound… read more
Cat Man
Cat Man
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2004 cat acert c15 Diesel engine over heats only when boost
2004 cat acert c15 Diesel engine over heats only when boost pressure reaches over 30 psi with light loads and 17 psi with heavy loads. No coolant loss or oil. Compression is good on all cylinders. Wil… read more
Cat Man
Cat Man
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Vocational, Technical or Trade Scho
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I have 2007 peterbuilt model 379 with cat c15 twin turbo
I have 2007 peterbuilt model 379 with cat c15 twin turbo nxs, exhaust goes high up to 1200 … read more
Cat Man
Cat Man
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I have an 05 western star with a c15 acert,my radiator was
Hi,I have an 05 western star with a c15 acert,my radiator was shot so I changed it and since it's been changed the engine oil temp at idle is 125 and oil pressure is 60 psi. Running down the road it's… read more
Daniel Wilson
Daniel Wilson
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I have a 2006 t800 with a cat c15 motor. I had a complete in
I have a 2006 t800 with a cat c15 motor. I had a complete in frame done at 1,225,000 miles. It now has 1,485,000 miles. It has been using 1 gallon of oil every 5000 miles right after oil change and th… read more
Mike Mcmillan
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I have a c13 ran perfect on the way from Miss. to Ga and 5
I have a c13 ran perfect on the way from Miss. to Ga and 5 miles from home stopped at the store. Pulled back on the road and truck would barely run and was smoking black out the exhaust like a tire on… read more
Cat Man
Cat Man
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Ever since I had my c15 accert overhauled and added cats
Ever since I had my c15 accert overhauled and added cats heavy haul tune I can only get 40 psi of boost at best and it use to run 50 + I had it dynoed we got 442 to the ground after new fuel pump and … read more
Kent Van Wagner
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Cat c15 has no boost and height exhaust temp. Turbos are
Cat c15 has no boost and height exhaust temp. Turbos are both good and there are no leaks when a pressure test is done. … read more
Cat Man
Cat Man
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I have a 2005 international 8600 with a ism Cummins turn to
Good day I have a 2005 international 8600 with a ism Cummins turn to 410. The problem is low power it had an injector bad so replace all 6 new new turbo actuator new turbo control box new turbo speed … read more
Alex Olsen
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I have a 2003 peterbilt 379x, C15, 6NZ. 18 speed, 3.70
I have a 2003 peterbilt 379x, C15, 6NZ. 18 speed, 3.70 diffs. Engine rebuilt (CAT Platinum) 16 months ago. Engine pops/stumbles under load. Stop truck at traffic light /slow to go around curve/ park o… read more
Cat Man
Cat Man
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I have a 2004 Pete with a C15 CAT. Driver said truck idles
I have a 2004 Pete with a C15 CAT. Driver said truck idles fine but when you take off under a pull it cuts out like it's starving for fuel. Both fuel filters have been replaced (still cuts out). Fuel … read more
Cat Man
Cat Man
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I have a 91 freightliner with the 60 series Detroit. Hauled
I have a 91 freightliner with the 60 series Detroit. Hauled 2 loads of cattle the other day, turned the truck off while loading the 3Rd load, started up and pulled away to find very little power when … read more
Cat Man
Cat Man
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Vocational, Technical or Trade Scho
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I have a power loss on a Detroit 60 series engine its in a
I have a power loss on a Detroit 60 series engine its in a freightliner classic 2003. The motor works fine there is no proble in the fuel lines collapsing and the pressure valve on the return line is … read more
Clayton
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Chris (aka-Moose)

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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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