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I have a 2008 Cummins ISM that will not start a stationary
I have a 2008 Cummins ISM that will not start a stationary regen. The DOC temp tops out at 415. Turbo is new and I checked it with a 4xx card and calibrated the actuator. The EGR valve is closed. The … read more
NicholasM1019
NicholasM1019
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Vocational, Technical or Trade School
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Truck won't start when it's cold. Runs fantastic when
Truck won't start when it's cold. Runs fantastic when outside air temp is 70-80 degrees Fahrenheit. Won't start if it's not plugged in, no matter the temp, When it won't start, it blows black smoke. C… read more
Mike Mcmillan
Mike Mcmillan
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Have a 2007 Ford f 650 with a cat c 7 motor Unit has low
Have a 2007 Ford f 650 with a cat c 7 motor Unit has low power some time I have replaced fuel filters and timing sensors, atmospheric sensor. Boost sensor, injection pressure sensor, temp sensor, inta… read more
Keiphun Sowell
Keiphun Sowell
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Dd15 that wont run but a 20 min regen and the codes are only
dd15 that wont run but a 20 min regen and the codes are only ambient temp sensor and intake manifold error temps on the inlet and outlet are only going to 350 degrees… read more
Roy Belding
Roy Belding
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I want to know if putting a cummins 8.8 capps fuel system
I want to know if putting a cummins 8.8 capps fuel system head onto a cummins 8.9 common rail bottom end will be alright with the different injector nozzle spray angle and piston shape. Thank you … read more
cumminsdr
cumminsdr
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2006 freightliner m2. vin X55984. A/C cycles too fast. 10
2006 freightliner m2. vin X55984. A/C cycles too fast. 10 seconds on and off. Hooked up laptop, hvac control head turns off clutch. Thought temp probe was just bad, installed new probe, same thing. Pu… read more
Jeremy
Jeremy
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I have a 2007 Freightliner M2 106 with a 7.2L. When cold it
I have a 2007 Freightliner M2 106 with a 7.2L. When cold it runs fine until it hits 150 degrees. It then misses bad until it warms up to 190-200 degrees. … read more
Cat Man
Cat Man
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2014 perebilt Isl 9, px9, 4726 and 2372 codes, fuel filters
2014 perebilt Isl 9, px9, 4726 and 2372 codes, fuel filters have been replaced and no visible fuel leaks. lines to water separator are clear other potential faults?… read more
Andy
Andy
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I install a 3126 7LZ590 truck engine on a wheel loader.Im
I install a 3126 7LZ590 truck engine on a wheel loader.Im getting low power I think maybe its because on this application the have to deliver power while not moving and the speed sensor does not detec… read more
Cat Man
Cat Man
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I have a new to me Cummins ISX engine serial number is
I have a new to me Cummins ISX engine serial number is ***** This is an EGR motor but pre Def. This is my first EGR motor and I am noticing higher Intake Air Temp then I am used too. Under normal load… read more
Jeremy
Jeremy
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I got my dpf filter cleaned yesterday. Today I drove about
Hello I got my dpf filter cleaned yesterday. Today I drove about 200 miles and the dummy light came on giving fault code spn 5319 fail 31. Kept driving and the check engine light came on with the dpf … read more
Jeremy
Jeremy
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Caterpillar c7 kal runs good until it reaches about 155 degrees.
Caterpillar c7 kal runs good until it reaches about 155 degrees. The fuel pressure runs high at cold temp 85 psi plus and then at the 155 degree temp the fuel pressure drops off to nothing… read more
Cat Man
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i have a 2007 kenworth t800h with a 565 isx high exhaust temp
i have a 2007 kenworth t800h with a 565 isx high exhaust temp 1100 degrees 30 to 40 psi boost when under load but 5 psi when jaking down hill lot of black smoke turbo seems to hesitate then just takes… read more
Daniel Wilson
Daniel Wilson
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Im working on a 2006 T800 Kenworth with a ISX Cummins engine
I'm working on a 2006 T800 Kenworth with a ISX Cummins engine in it, the problem is the oil pressure is low, when you first start it the pressure is about 45, if you rev it up it doesn't really go up … read more
spankyjr1
spankyjr1
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Have a 6nz fuel return very hot put second new pump as well
Have a 6nz fuel return very hot put second new pump as well as bypass and regulator valves new filter housing fuel lines diverted valve on return wiring harnesses ECM to head and inside new injectors … read more
Cat Man
Cat Man
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Hello, CAT C7 engine in a straight truck. Runs and pulls well
Hello, CAT C7 engine in a straight truck. Runs and pulls well until engine temp reaches about 150 degrees then everything changes. runs rougher not as powerful. any suggestions ??… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
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we have 2006 freightliner business class M2 with C9 caterpillar
we have 2006 freightliner business class M2 with C9 caterpillar motor. Once it warms up (over 150 degrees) starts to blow heavy white/grey smoke. Worse under load and higher RPM's. No check engine lig… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
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Hello, I have a Monaco motor home powered by a 360 ISC and
Hello, I have a Monaco motor home powered by a 360 ISC and it appears as though I have lost power on a pull. My turbo/booster gauge will not exceed 20psi whereas before it read higher as the pull incr… read more
cumminsdr
cumminsdr
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Meet the Experts:

Daniel Wilson

Daniel Wilson

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Owner at DJ Wilson

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I am ASE Master Truck Certified.

Wayne

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worked on, Gmc, Macks, Freight liner,Mercedes Benz,,Ford, sterling

Jeremy

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cumminsdr

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Curtis B.

Curtis B.

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Technician turned service manager on multiple lines of trucks and engines, used in industry.

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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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