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
I HAVE A 1996 PETERBILT 379 WITH WIRING ISSUE. PRIOR OWNER
I HAVE A 1996 PETERBILT 379 WITH WIRING ISSUE. PRIOR OWNER GOT CREATIVE. HE DIRECT WIRED FAN TO BE ON ALL THE TIME, THEN NEXT SHOP INSTALLED SWITCH FOR FOR FAN. EVERY TIME THE FAN IS TURNED ON IT BLOW… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
5,904 satisfied customers
Working on a Peterbilt 386 vin # DD205206.low beam on
Working on a Peterbilt 386 vin # DD205206.low beam on passenger side is not working. Volt gauge shows 5 bolts. Looked for headlight relays but can't find any. Called Peterbilt parts guy I buy from and… read more
NicholasM1019
NicholasM1019
Diesel Technician
Vocational, Technical or Trade School
23 satisfied customers
I'm having an intermittent loss of power to the ECM I think.
I'm having an intermittent loss of power to the ECM I think … read more
Andrew G.
Andrew G.
Heavy Truck Mechanic
Heavy Duty Equipment - Truck and Transport Mechanic
4 satisfied customers
2004 Pete 385 gauges not working. Wire # 242 doesn't have
Wire # 242 doesn't have power. Tach, speedometer, volt meter & other gauges not working … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
5,904 satisfied customers
1992 pete 379. No turn signals, 4ways, or brake lights
1992 pete 379. No turn signals, 4ways, or brake lights working. Flasher inside dash can be heard clicking. Left tail light works. Right does not but comes on solid when right turn signal used. Indicat… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
5,904 satisfied customers
I have a peterbilt 2002 379 need a wiring diagram for a/c
i have a peterbilt 2002 379 need a wiring diagram for a/c system i am having problem getting two powers at the low pressure switch, last 6 of the vin is 592511… read more
NicholasM1019
NicholasM1019
Diesel Technician
Vocational, Technical or Trade School
23 satisfied customers
I have a 1996 peterbilt 379 that the AC is not working. it
I have a 1996 peterbilt 379 that the AC is not working. it seems like the system is fully charged but the compressor will not engage .I checked all fuses and relays all are fine. the switches on the a… read more
TimothyC1019
TimothyC1019
Lead Diesel Mechanic
High School diploma
2009 peterbilt 387 a/c quit. no power to switch on dash.
2009 peterbilt 387 a/c quit. no power to switch on dash … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
214 satisfied customers
I have a 2005 peterbilt 379 with a cat acert C15 in it the
I have a 2005 peterbilt 379 with a cat acert C15 in it the blower motor will not work on any speed I have gotten the multimeter out and started checking when I go to any point in the system be at the … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
214 satisfied customers
98 Peterbilt 379, vin: ***************** AC won't run,
98 Peterbilt 379, vin: ***************** AC won't run, pressures are good no power to compressor, high pressure switch at condenser is hot on both sides of plug even when disconnected from switch and … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,747 satisfied customers
2005 peterbilt 378 brake lights quit working and the cruise
2005 peterbilt 378 brake lights quit working and the cruise wont kick out with brake pedal applied. both these problems started at the same time. the trailer hand brake doesnt even turn the brake ligh… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
535 satisfied customers
I have a 1999 peterbilt when I turn the ignition switch off
I have a 1999 peterbilt when I turn the ignition switch off it only shuts off engine and stereo, heater and low oil pressure warning do not turn off … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
535 satisfied customers
2000 PETERBILT 379, YOU ENERGIZE THE 304 CIRCUT ANYWHERE AND
2000 PETERBILT 379, YOU ENERGIZE THE 304 CIRCUT ANYWHERE AND MY LOW AIR ALARM TURNS ON AND ALL THE IDIOT LIGHTS TURN ON. THEY WILL NOT TURN OFF UNTIL CIRCUT 304 OR 242 ARE DEENERGIZED. I CAN GO TO LOW… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
5,904 satisfied customers
Got a 06 Peterbilt 387 Pacer motor the dash lights blink on
Got a 06 Peterbilt 387 Pacer motor the dash lights blink on and off like it's in limp mode … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,341 satisfied customers
Have a 1997 357 peterbilt triaxil. the low air buzzer does
Have a 1997 357 peterbilt triaxil. the low air buzzer does not work. Where is the buzzer located. The low pressure light does work. Any suggestions?… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
5,904 satisfied customers
I'm having the problem with the lights on my 2007 Peterbilt
I'm having the problem with the lights on my 2007 Peterbilt 385. I have a headlights for about five seconds (but not high beams), and no clearance lights or dash lights. Fuses all seem fine… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
5,904 satisfied customers
Code 32 on a 2006 Peterbilt after the started was Replaced.
Code 32 on a 2006 Peterbilt after the started was Replaced. Check engine light keep blinking real slow, even after i turn off theu. ET shows this active code, 91-08 throttle position invalid. I tested… read more
Travis A. Wells
Travis A. Wells
Truck Mechanic
Associates of Applied Science
15 satisfied customers
Heavy Duty Diesel Truck Engine - 2006 Peterbilt Mod 379
Heavy Duty Diesel Truck Engine - 2006 Peterbilt Mod 379 - Cat Engine Mod C13 - Engine SN KCB35406. On March 28, 2013 I asked a question about a problem we have with this engine. It was answered by Cat… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,341 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

5,904 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

5,341 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

16,703 satisfied customers

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

Jeremy

Jeremy

Certified Truck/Bus Technician

2,747 satisfied customers

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

Curtis B.

Curtis B.

Technician

1,911 satisfied customers

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

cumminsdr

cumminsdr

Mechanic

1,876 satisfied customers

All types of Cummins applications

Chris (aka-Moose)

Chris (aka-Moose)

Technician

588 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