Medium and Heavy Trucks

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Related Medium and Heavy Trucks Questions
The DEF tank is full ,but the gauge shows empty. on. 2019
the DEF tank is full ,but the gauge shows empty. on … read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
Recently I hade problems with derates on my motor I got a
recently I hade problems with derates on my motor I got a x15 performance 565 ficks the problem erase all codes but I still feel my truck with no power empty with no load before I hade code 2346 and o… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
Mx 13 engine derates with no fault codes. 2016 Peterbilt 579
Mx 13 engine derates with no fault codes JA: What is the complete model and serial number of your machine? Customer: 2016 Peterbilt 579 ***************** JA: Are you fixing this yourself? What have yo… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
Fan will not kick off. 2013 Peterbilt 389 isx cummings. And
yes and have put in a fan solenoid all new ac switches has power to solenoid when truck is not running key on but when you start it has no power to solenoid and fan wont kick out if I put power to solenoid fan shuts off … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
4,085 satisfied customers
I converted my c15 mxs to a single turbo. got the program to
I converted my c15 mxs to a single turbo. got the program to delete my IVA's. Everything worked well for months then out of nowhere the engine started to derate me whenever I use my eng brake. If I st… read more
Bradey V
Bradey V
Certificate
I am showing code 0221 on an n14 cummins celect plus any
I am showing code 0221 on an n14 cummins celect plus any suggestions? … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
207 satisfied customers
Running rough slow take off low power. 2013 volvo 670 D13.
Running rough slow take off low power JA: What's the make/model/year of your truck? Engine type? Customer: 2013 volvo 670 D13 JA: Are you fixing your truck yourself? What have you tried so far? Custom… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
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Check engine light with the occasional stop engine light.
Check engine light with the occasional stop engine light … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
Peterbilt fmi9 spn3360 any ideas. Peterbiltisx 15 cm2250.
Nothing noticed it came on over bumps had a bad oil leak and spread evrywhere from distribution housing … read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
I have a problem with a few codes. Vehicle Identification
Yes I am I just wanted to clear the code or see what is causing the code … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,740 satisfied customers
1997 peterbilt n14 celeste plus. 1997 peterbilt cummins n14
Chasing a problem for several years. Seems to me when I have an injector starting to miss the ecm will derate engine power.im not sure if this is a derate or just a power loss. … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
4,085 satisfied customers
Still no power isx 2012 did a Delete to dpf engine was
Still no power isx cumming 2012 did a Delete to dpf engine was rebuilt at the time of delete im sure it not getting turbo boost check cac no leaks amd no exhaust leak and recal vgt… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
207 satisfied customers
I have a 2009 389 Pete with a sdp cat in it. I'm wanting to
I have a 2009 389 Pete with a sdp cat in it. I'm wanting to know how much trouble swapping it to older 3406e or 6nz would be. I know it will bolt up and that I'll have to do the exhaust mods needed. M… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
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I've C15 BXS with VVAs put to sleep, and tuned to 650hp. I
I've C15 BXS with VVAs put to sleep, and tuned to 650hp. I has an derate issue when cold, with a load it will only build 35 psi boost, and feels draggy, and after you've driven bout 5-10 minutes it st… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,234 satisfied customers
Having low boost and no power below -14c. I wrapped a warm
Having low boost and no power below -14c. I wrapped a warm rag around outside temp sensor on mirror to get display to show -8c and it has full power and boost.… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
Have a 2011 Peterbuilt 386 with a ISX Cummins CM2250 engine
Have a 2011 Peterbuilt 386 with a ISX Cummins CM2250 engine serial number 79435106. What we are having problems with is that in only 12th or 13th gear when your pulling up a hill fuel pressure shuts o… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
Toby, my name is***** recently bought a 93 Peterbilt with
Hi Toby, my name is***** recently bought a 93 Peterbilt with 12.7 DDEC4 430/470 engine. Drove the truck about 7hrs to my home and noticed consistent low power and low turbo boost. No smoke, No CEL. I … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
2009 peterbilt 389 isx 15. I have two codes 1921 and 2742.
2009 peterbilt 389 isx 15. I have two codes 1921 and 2742. Ones after treatment temp sensor and other just means it's in level 3 most severe. I've hooked up in site and ran force regeneration and exha… 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

4,737 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

5,234 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

4,023 satisfied customers

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

Jeremy

Jeremy

Certified Truck/Bus Technician

2,740 satisfied customers

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

cumminsdr

cumminsdr

Mechanic

1,700 satisfied customers

All types of Cummins applications

Curtis B.

Curtis B.

Technician

1,571 satisfied customers

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

Chris (aka-Moose)

Chris (aka-Moose)

Technician

353 satisfied customers

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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