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Related Medium and Heavy Trucks Questions
Low oil pressure when running. I just rebuilt my Cummins isx
Low oil pressure when running. I just rebuilt my Cummins isx 435 sp … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
I have a Cummins isx 2007, hard to start rough idle. Cummins
Hello, I have a Cummins isx 2007, hard to start rough idle … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
I have a peterbuilt with a Cummings 871 that is only getting
I have a peterbuilt with a Cummings 871 that is only getting 31 psi boost, it has a new rebuilt engine just done last week, all new injectors, the emissions system is deleted, new air to air cooler, n… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
Have a problem with a isx cm 871 it's a fueling actuator
Have a problem with a isx cm 871 it's a fueling actuator problem I swap front to back and back to front and the problem follows the actuator . It has four new actuators six new injectors new egr valve… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
1999 cummins isx 450. Fuel pressure drops after throttle
1999 cummins isx 450. Fuel pressure drops after throttle input and stays at about 40-70psi … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
I have a ddec 6. Surges at high idle. Just did head gasket.
I have a ddec 6. Surges at high idle. Just did head gasket. … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
We have a 2250 isx. A valve broke off so we removed the head
Hi. We have a 2250 isx. A valve broke off so we removed the head and got it completely rebuilt. We reinstalled the head everything runs perfectly smooth but when you get 20 psi boost you get a really … read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,458 satisfied customers
On August 23 ask you. I rebuild a engine c15 cat 6NZ w/
On August 23 ask you . I rebuild a engine c15 cat 6NZ w/ original parts but same injectors not to old about 6 months or 60k miles and the turbo is the same old and miles before of inframe the motor go… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
We have 1989 western star with l10 400 hp Cummins motor in
we have 1989 western star with l10 400 hp Cummins motor in it. We did an inframe to the motor, we sent cyl head out for rebuild, head was cracked, after 5 attempts the machine shop found a good core t… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
I have a 2000 freightliner fld with a 12.7 detroit
hello....i have a 2000 freightliner fld with a 12.7 detroit engine that is surging while going down the road... it will like cut off or loose power like shake or whatever then it will pick back up and… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
420 satisfied customers
I have a isx 455 that keeps blowing timing fuel solenoids i
I have a isx 455 that keeps blowing timing fuel solenoids i have replaced 13 of them I had a dpf delete done on this truck in oct of last year I don't think this has nothing to do with is only because… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
I have a 97 379 Peterbilt with a 3406e and seem to have a fuel
I have a 97 379 Peterbilt with a 3406e and seem to have a fuel delivery issue as well as an asphaltene problem that came from a bunk heater that runs off one of my tanks. It turned the fuel black and … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
I have a 2006 KW with an ISX ESN-79096134 Just did an in frame
I have a 2006 KW with an ISX ESN-79096134 Just did an in frame and when I start it up it seems to miss for a little and then clears up. Any ideas? engine has not been broke in yet.… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
420 satisfied customers
Im working on 09 with ISX CM871 WHICH smokes when starts,
I'm working on 09 with ISX CM871 WHICH smokes when starts, shakes and has explosions while idling… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
203 satisfied customers
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
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
Hi, I have a Detroit Series 60, 2006 (DDEC IV, N3 injectors
Hi, I have a Detroit Series 60, 2006 (DDEC IV, N3 injectors ). It was running rough, sounded like a miss, did cut-out, did not find any one specific injector bad, checked turbo, intake turbine gone (s… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
420 satisfied customers
we have a 2004 Pete with ISX, when you start it up {cold or
we have a 2004 Pete with ISX, when you start it up {cold or warm} it will run smooth for 35 seconds then run really rough. we have tried an ECM, checked fuel pressures, eliminated TVG sensor, we are r… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
420 satisfied customers
My friend has a 2003 Peterbuilt with the 600 Cummins. He is
My friend has a 2003 Peterbuilt with the 600 Cummins. He is having problems with the fuel being extremely hot after it returns to the tank. Anything under a half tank and you can't even place your han… read more
JCTech
JCTech
Technical Specialist
Vocational, Technical or Trade Scho
352 satisfied customers
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Meet the Experts:

Daniel Wilson

Daniel Wilson

3,632 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

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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

Jeremy

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cumminsdr

cumminsdr

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Chris (aka-Moose)

Chris (aka-Moose)

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dieseldan55

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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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