Medium and Heavy Trucks

Have truck repair questions? Ask an Expert

Connect one-on-one with {0} who will answer your question

Related Medium and Heavy Trucks Questions
Headlights take a bit to come on sometime. 2012 peterbilt
checked some of the plugs relays that are under the hood … read more
NicholasM1019
NicholasM1019
Diesel Technician
Vocational, Technical or Trade School
7 satisfied customers
I have 2012 367 Peterbilt with isx Cummins but it's original
I have 2012 367 Peterbilt with isx Cummins but it's original engine and would like to replace it with c15 6nz is there conversion kits available … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
430 satisfied customers
Showing spn 1569 engine torque derate. 386 peterbilt 2012
I will fix if I knew if it is a sensor. I have handheld Can Do diagnostic tool and trying forced regennostic … read more
Roy Belding
Roy Belding
7,580 satisfied customers
I owe a 2008 Peterbilt Paccar straight. The blinkers 4 way
I owe a 2008 Peterbilt Paccar straight. The blinkers 4 way and brakes stop working. There is power to the fuse 20amp thu to the flasher two prong which is new . Put in a new ignition switch and turn s… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
11,847 satisfied customers
I have a 2014 kenworth t680 blinker problem, the right front
I have a 2014 kenworth t680 blinker problem, the right front blinker works but the rear tractor blinker /brake light doesn't work. Replaced the light assembly still have the same problem. Marker light… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
11,847 satisfied customers
2012 pet 386. ISX 15. engine s/n 79481931. truck died like
2012 pet 386. ISX 15. engine s/n 79481931. truck died like key was shut off. fuel filter was half empty. no lift pump operation. found relay and jumped power to pump. pump runs. no power to load side … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
11,847 satisfied customers
Could battery cables possibly be the problem have tried all
Could battery cables possibly be the problem have tried all of the above and same problem just 8000 Mike's on a total rebuild. Was running great turned a corner and this trouble started … read more
Scott Anthony
Scott Anthony
Master Technician
HS Diploma
2 satisfied customers
I have a 11' 386 this only happens when i have a trailer
I have a 11' 386 this only happens when i have a trailer hooked when I step on the brakes I hear an air leak under the drivers seat and air leaks out of the trailer valve … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 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
430 satisfied customers
I have a 386 Peterbilt that I am having issues with the Turn
I have a 386 Peterbilt that I am having issues with the Turn signals and hazard lights, and Brake lights. They are not working correctly, when hazards are on the left front turn signal blinks and the … read more
Roy Belding
Roy Belding
7,580 satisfied customers
2009 386 with Cummins ISX. Lose throttle and engine light
2009 386 with Cummins ISX. Lose throttle and engine light comes on. Code is throttle position. replaced 2 tps's, both the harnesses to ECM, and the ECM. Added more grounding and cleaned all connection… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
11,847 satisfied customers
I have an ISX 1 EGR DPF pushes coolant out the overflow, in
i have an ISX 1 EGR DPF pushes coolant out the overflow, in last two months have replaced egr cooler and compressor and have run tests for combustion gas tests also three times, system pressure tested… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
I have a Peterbilt tractor 379 I installed LEDs my right
I have a Peterbilt tractor 379 I installed LEDs my right blinker will not work when the headlights are on. But works when I had lights off… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
11,847 satisfied customers
I have a problem with a peterbilt tractor right blinker dies
I have a problem with a peterbilt tractor right blinker dies work when lights off when head lights and marker lights go on it stops blinking can i get some help please… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
11,847 satisfied customers
Peterbilt 387 2012 cummins isx engine.Head lights + Signals
Peterbilt 387 2012 cummins isx engine.Head lights + Signals stop working after few minutes. When I leave truck off for couple hours ,work again but goes off after few minutes.… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
207 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
Hello I have a 2004 Volvo 780 tractor. when I run the self
Hello I have a 2004 Volvo 780 tractor. when I run the self test on the dash I get power supply 4. I al so need a wire diagram for the A/C system front the control unit to the compressor… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
207 satisfied customers
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
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
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.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here.

DianeDallas, TX

< Previous | Next >

Meet the Experts:

Daniel Wilson

Daniel Wilson

11,847 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

< Previous | Next >

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.

Show MoreShow Less

Ask Your Question

x