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
2011 peterbilt 388 right turn signal will not come on after
2011 peterbilt 388 right turn signal will not come on after about 30 seconds will flash once then stop … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
7,534 satisfied customers
Left turn signal wont work on a 2007 Peterbilt. 2007
left turn signal wont work on a 2007 Peterbilt JA: What's the make/model/year of your truck? Engine type? Customer: 2007 Peterbilt 357 with C13 cat twin turbo JA: Are you fixing your truck yourself? W… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
7,534 satisfied customers
Why do all the clearance lights come on and the headlights
Why do all the clearance lights come on and the headlights go to highbeam when just the headlight switch is switched on on my 03 peterbilt 379?… read more
William Herren
William Herren
A.A.S.
2 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
7,534 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
7,534 satisfied customers
Working on a 1998 peterbilt model need head lights gh beam
working on a 1998 peterbilt model need head lights high beam wiring sechematic … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
7,534 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
7,534 satisfied customers
I have a 2007 Peterbilt, had a MXS Accert changed out cat
I have a 2007 Peterbilt, had a MXS Accert changed out for 6nz cat .how can I use my 2007 engine oil temp gauge MXS had no sending unit for this.… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
7,534 satisfied customers
Yesterday my speedometer, odometer, voltage gauge and
Yesterday my speedometer, odometer, voltage gauge and instrument light cluster stopped working. Checked fuses and relays in fuse box as well as relay directly behind gauges. Could not resolve the prob… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
7,534 satisfied customers
Would you have a wiring diagram 2013 peterbilt 389
Hello Andy would you have a wiring diagram for a 2013 peterbilt 389 for the speedometer ? Murry… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
7,534 satisfied customers
I am looking wiring schematic. I just took out an SDP
I am looking for a wiring schematic. I just took out an SDP and replaced it with a 6NZ. I need to know how the cab connector harness needs to be rewired for the older engine to communicate with the mu… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
7,534 satisfied customers
I dont get power on 2 of the 4 wires on the ECM on a N14 Celect
I dont get power on 2 of the 4 wires on the ECM on a N14 Celect Plus, in a 98 Peterbilt, how can i troubleshoot the wiring on this?… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
7,534 satisfied customers
I'm putting a 2000 peterbilt(###) ###-#### ***** engine in a
I'm putting a 2000 peterbilt(###) ###-#### ***** engine in a 1996 peterbilt 379 that has a detroit DDEC IV 60 series engine and i need the ecm interface wiring schematic and pin configuration from fir… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
7,534 satisfied customers
Peterbuilt trucks, my sons driving 2011, in the mid west.
Peterbuilt trucks, my son's driving 2011, in the mid west. He says his brakes are Squishy in the sub zero cold weather. Had it checked but found nothing, carrying 70,000lb. loads. Any Service bulletin… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
2,892 satisfied customers
having major difficulties with headlights. where is pressure
having major difficulties with headlights. where is pressure switch for daytime running lights located on 2003 peterbilt 379… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
7,534 satisfied customers
2011 peterbilt 389 headlights wont come on. Has mirror mounted
2011 peterbilt 389 headlights won't come on. Has mirror mounted led signal lights and when you turn on the park lights or headlights it back feeds to the mirror signal lights and turns them on without… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
7,534 satisfied customers
Hi, I have a 1992 Peterbilt short nose. Cab serial number 314804.
Hi, I have a 1992 Peterbilt short nose. Cab serial number 314804. The headlights are not working. Both left and right side relays click, but but there is no voltage at the relay contact terminals. I'm… read more
Clayton
Clayton
Technician
Vocational, Technical or Trade Scho
625 satisfied customers
We have a 2007 Peterbilt model 386. We have lost the headlights
We have a 2007 Peterbilt model 386. We have lost the headlights for no reason. We have no power to the on off switch. Where fuse plugs into has no power. Any ideas how to fix this?… read more
diesel-tech
diesel-tech
Owner of landrys truck repair llc
136 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

7,534 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

4,530 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

2,892 satisfied customers

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

Jeremy

Jeremy

Certified Truck/Bus Technician

3,999 satisfied customers

ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, EPA 608/609 HVAC Certified, Steering/Suspension and ABS/Brakes Technician

cumminsdr

cumminsdr

Mechanic

1,351 satisfied customers

All types of Cummins applications

Curtis B.

Curtis B.

Technician

991 satisfied customers

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

dieseldan55

dieseldan55

Contractor

74 satisfied customers

Road Service mechanic for Volvo Construction.

< 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