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I have a 2012 Cummins ISX. We just completed an out of frame
I have a 2012 Cummins ISX. We just completed an out of frame overhaul. Motor runs great, but has a weird oil pressure situation. At start up, the oil pressure gauge goes up to about 70 psi. Stays ther… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
207 satisfied customers
Isx cummins we have low oil pressure also over full oil
isx cummins we have low oil pressure also over full oil level it does smell like fuel … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
We have a 2008 peterbilt 389 with a isx 871 cummins factory
we have a 2008 peterbilt 389 with a isx 871 cummins factory 600 hp .The truck is starting to have a miss in it pulling hills and while on cruise.Have changed fuel filters and were blackish stuff, chan… read more
Expert
Expert
7,390 satisfied customers
Have a 2009 isx 485 hp just had a short block with cams done
Have a 2009 isx 485 hp just had a short block with cams done everything was fine about 5000miles notice some smoke when starting the truck now after it sits I have what I believed to be oil coming out… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
385 satisfied customers
I have a 2011 386 peterbilt show DPF fuel pressure delivery
I have a 2011 386 peterbilt show DPF fuel pressure delivery code and a clogged dpf symbol but just had the dpf filters cleaned but symbol stays active for clogged … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
385 satisfied customers
I have a 2013 Cummins ISX 15. 485 hp in a w900. I have codes
I have a 2013 Cummins ISX 15. 485 hp in a w900. I have codes Spn77. And spn 3246. W a stop engine light… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
385 satisfied customers
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
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
I have a 2012 Peterbilt 587 with Paccar engine. Low coolant
I have a 2012 Peterbilt 587 with Paccar engine. Low coolant light comes on after about 2-5 minutes of idling. Reservoir is full. If I take off immediately after starting truck before light comes on an… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
I'm getting oil in my coolant. Truck not over heating but
I'm getting oil in my coolant. Truck not over heating but low oil pressure light comes on and shuts truck off. I just changed oil with new filter. Putting in the shop tomorrow to change oil cooler. Wi… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
I was just wondering about any problems that drivers are
Hello, I was just wondering about any problems that drivers are having with an ISX 15 Engine, I'm thinking about buying a truck with that engine in it, it has about 550k miles on it and a new turbo, j… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
What are the voltage specs on the throttle position sensor
What are the voltage specs on the throttle position sensor on a 871 Cummins ISX ? Even after a new sensor was replaced the voltage shows to be out of range on Cummins Insite. The signal voltage shows … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
I have an isx15 cm2250 400hp with 680K miles on it in a 2012
I have an isx15 cm2250 400hp with 680K miles on it in a 2012 peterbilt 386 that is over pressurizing the cooling system and blowing coolant from the pressure relief cap... a block test has indicated c… read more
Curtis B.
Curtis B.
Technician
Associate Degree
1,571 satisfied customers
I have a 2007 peterbilt vin#751984 The low coolant light
Hello I have a 2007 peterbilt vin#751984 The low coolant light won't turn off. I replaced sensor.… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
I have a peterbilt wit cummis isx, some days ago I changed
Hello, I have a peterbilt wit cummis isx, some days ago I changed the filter because it show me the mensaje stop engine and the computer said that was for crankcase pressure, after changed it the mess… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
I acquired a Cummins isx 15 550 engine (cm2350) complete
I acquired a Cummins isx 15 550 engine (cm2350) complete with fuller transmission and emissions after treatment system (egr, scr) off of an 2015 international truck. ecu and wire harness included up t… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
207 satisfied customers
Phillip here. Got a 06 Cummins isx. Getting coolant steam
Phillip here. Got a 06 Cummins isx. Getting coolant steam out the stacks. Engine has 60000 on overhaul. Just replaced the head and head gasket again about 10000 ago. It blew the head gasket. Now its s… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
2007 Volvo 670, Cummins engine 425 hp, We keep getting check.oil
2007 Volvo 670, Cummins engine 425 hp, We keep getting check.oil ALERT...TA was changing sensors...made mistake by putting oil sensor in to fuel sensor place... Now after they fixed that for 2 months … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
low coolant light stays on on our 2013 peterbilt 389 . have
low coolant light stays on on our 2013 peterbilt 389 . have changed sensor and checked wires and found nothing . even took truck to cummins and they couldn't find the problem . they said it must be on… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
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Meet the Experts:

Daniel Wilson

Daniel Wilson

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Owner at DJ Wilson

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

Jeremy

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ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, Network Engineer specializing in CAN faults, Aftertertreatment, and vehicle communications

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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24 years of experience diagnosing & repairing

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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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