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We have a 2007 Peterbilt 389 cummins ISX engine 600 we are
we have a 2007 Peterbilt 389 cummins ISX engine 600 we are getting the fault code J1939 SA 49 SPN 829 FMI 3 … read more
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Daniel Wilson
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Power on the ground cables on 379 peterbilt year 2000. 379
power on the ground cables on 379 peterbilt year 2000 … read more
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Vocational, Technical or Trade Scho
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I have a full tank of DEF. The engine is derated and I have
I have a full tank of DEF. The engine is derated and I have the following codes. 4340, 5246, 1569, 3740, and 6802 it's a 2016 Peterbilt 389 Cummins isx … read more
Eddy
Eddy
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I have a 2012 Isx 15 600 hp in a Peterbilt 389, fuel pump
I have a 2012 Isx 15 600 hp in a Peterbilt 389, fuel pump went out took it to local shop they replaced but timing was out, it ran fine just check engine light and code was for mechanical timing. Took … read more
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I need the wire diagram Peterbilt 2010 isx of the pedal
Good afternoon i need the wire diagram Peterbilt 2010 isx of the pedal throttle position from the cab to the ecm … read more
Daniel Wilson
Daniel Wilson
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2009 Peterbilt with Cummins ISX, would like OEM wiring for
2009 Peterbilt with Cummins ISX, would like OEM wiring for Idle validation switch. I have a flash code 431. … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
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2009 Peterbilt with isx Cummins on insite trying to do a
2009 Peterbilt with isx Cummins on insite trying to do a stationary regen says clutch pedal is depressed just put in new clutch switch still says depressed try to bypass with jumper wire still says de… read more
FIX-IT
FIX-IT
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I have a code on my peterbilt of sp175 what does it mean.
I have a code on my peterbilt of sp175 what does it mean … read more
cumminsdr
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2014 ISX CUMMINGS PETERBILT 587 WHERE IS THE DEF HEATER? 587
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cumminsdr
cumminsdr
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Coolant coming in intakes 123 front being 1. not the egr its
coolant coming in intakes 123 front being 1. not the egr its caped. not head gasket it was new. No signs of coolant getting passed gasket it upon inspection after removing head. no pressure in coolant… read more
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There is a fault code check engine symbol and exhaust with
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cumminsdr
cumminsdr
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2011 Peterbilt; Cummins ISX engine. Husband stop to nap;
2011 Peterbilt; Cummins ISX engine. Husband stop to nap; woke up and tried to start engine; Engine light came on and no power. I do have serial number. Mileage is 561,960. No obvious problems before.… read more
cumminsdr
cumminsdr
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2006 Peterbilt ISX trouble code 245....what caused this malfunction?
2006 Peterbilt ISX trouble code 245....what caused this malfunction? Fan is on full-time now.… read more
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Hello, I filled up my DPF Tank at a Loves and they had much
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cumminsdr
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i just bought an 2012 peterbilt 389 with an isx 15 450hp 1650
i just bought an 2012 peterbilt 389 with an isx 15 450hp 1650 torque. Dealer says it cant be turned up. Wanting to know if there is any difference in internal parts between the 3 ISX 15 families.… read more
cumminsdr
cumminsdr
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Got an 08 peterbilt with a cummins isx. Emissions removed.
Got an 08 peterbilt with a cummins isx. Emissions removed. Excessive cranking Grey smoke when it starts and fuel delivery pressure code.… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
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peterbilt 587: I have a 2012 peterbilt with a 587 isx. We keep
I have a 2012 peterbilt with a 587 isx. We keep ending.up in shop because eng warning keeos coming on with a connect sev tool fault. When this happens fuel milage goes down hill. They clean the dpf fi… read more
Steve
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Self Employed
High School or GED
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Harness, fuses, what? Just got 2008 Peterbilt 386 with a Cummins
Harness, fuses, what? Just got 2008 Peterbilt 386 with a Cummins ISX Signature 600 out of MHC Denver. After having two (2) sensors replaced - the pressure sensor & the TPS Assy (which was under warran… read more
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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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