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I ran out of fuel going up steep incline 300 feet from
I ran out of fuel going up steep incline 300 feet from station. Now engine wont start. Took top cap off davco fuel filter filled with fuel. Cleaned top o ring rubbed fuel on top glass and o ring put c… read more
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hello i have a 2005 peterbuilt 387 and my gauges go up and down like crazy non stop theres no connection with my data link either … read more
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Daniel Wilson
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2005 peterbilt 378 brake lights quit working and the cruise
2005 peterbilt 378 brake lights quit working and the cruise wont kick out with brake pedal applied. both these problems started at the same time. the trailer hand brake doesnt even turn the brake ligh… read more
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My traction control keeps popping up on my 2008 287
My traction control keeps popping up on my 2008 287 peterbuilt..qhe. it does i can give ha … read more
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Second opinion] have a 2007 isx engine number 79172975 the
Second opinion] have a 2007 isx engine number 79172975 the timing code on the rocker cover says 66 would this be correct for a cm870… read more
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Have a 2007 isx engine number 79172975 the timing code on
have a 2007 isx engine number 79172975 the timing code on the rocker cover says 66 would this be correct for a cm870 … read more
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2009 Peterbilt with Cummins ISX, would like OEM wiring for Idle validation switch. I have a flash code 431. … read more
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Auto Mechanics 1&2/diesel mech
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Peterbilt ISX engine engine brake stopped working think it's
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Daniel Wilson
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I'm not able to build boost I have replaced turbo and turbo
I'm not able to build boost I have replaced turbo and turbo control valve . I have a active code saying the vgt driver circuit is high voltage . it is a 2005 pete with a cummins 475 … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
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I put on a new fan clutch and solenoid. The fan will not
I put on a new fan clutch and solenoid. The fan will not engage unless I remove the air hose going to the clutch. The manual fan switch on the dash isn't working either. I got a new ecm 3 weeks ago. … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
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I have a 2007 Peterbuilt with a Cummins ISX 475hp Im trying
I have a 2007 Peterbuilt with a Cummins ISX 475hp Im trying to find the right head gasket for this motor. Would you be able to give me the right part number.… read more
Wayne
Wayne
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Vocational, Technical or Trade Scho
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My fan comes on with check engine light and engine brake
My fan comes on with check engine light and engine brake quits working 09 Pete 387 425 ISX.… read more
Daniel Wilson
Daniel Wilson
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I have a 09 pete 387 with a 450 hp Cummins 10 speed auto is
I have a 09 pete 387 with a 450 hp Cummins 10 speed auto is their a way of turning up the hp and torque on that motor I haul over weight loads sometimes over 30 ton and she is real doggy pulling hills… read more
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I acquired a Cummins isx 15 550 engine (cm2350) complete
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Our 2008 peterbuilt 387 isx 485 cummins will start to regen
our 2008 peterbuilt 387 isx 485 cummins will start to regen and then wont finish it just keeps going and won't stop. the high temp light doesn't come on now when it starts and just keeps saying dpf st… read more
Andy
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truck /coach technician
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With the Peterbuilt there is suppose to be a way to check
With the Peterbuilt there is suppose to be a way to check codes and we need to know how to do it. Any ideas? This is a 2008 peterbuilt 387. Also the speedometer and the cruise quit working and the eng… read more
cumminsdr
cumminsdr
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Can a Cummins ISX from an international prostar be installed
Can a Cummins ISX from an international prostar be installed in a peter built 379. The pete is a 2005 egr,- The international is a 2009 erg only (order date was 2006) neither truck has a burner. Thank… read more
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Jeremy
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I have a 2010 peterbilt 387 with a cummins isx CM871. The engine
I have a 2010 peterbilt 387 with a cummins isx CM871. The engine cranks but wont run. It did run only twice while here ...(Low idle, rough with no throttle response).Checked all the fuses...all good. … read more
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Meet the Experts:

Daniel Wilson

Daniel Wilson

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

Jeremy

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Curtis B.

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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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