Medium and Heavy Trucks

Have truck repair questions? Ask an Expert

Ask an Expert,
Get an Answer ASAP!

Related Medium and Heavy Trucks Questions
I have a 2007 International 7400 with the DT570. I've been
I have a 2007 International 7400 with the DT570. I've been trying to get the AC to work but to no avail. It has a new condensor, both lines going to the condensor, both thermistors and they're plugs, … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
254 satisfied customers
I have 2012 T800 vin 953392 with no power to the acc
Hi I have 2012 T800 vin 953392 with no power to the acc circuits in the fuse box (g3,g4,g5 and one in g6) all color codes green so there is no power to cb,hvac,radio or wipers although washer pump sti… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
254 satisfied customers
Volvo WG64 triaxle dump truck, MFR date April 1999 Cummins
Volvo WG64 triaxle dump truck, MFR date April 1999 Cummins diesel. A/c stopped working. 2 mechanics looked at it and said they have to dig into the harness on the driver's side of the engine to find t… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,243 satisfied customers
Truck is a International model 7300 SBA 4X2 YEAR 2012 VIN
Truck is a International model 7300 SBA 4X2 YEAR 2012 VIN 1HTZZAAN2DJ352156 The code is SPN 639 fmi 14 failed to receive PGN -1 ABS light and engine light staying on… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
7,194 satisfied customers
1998 freightliner fld with a 3406 cat.clutch fan will not
1998 freightliner fld with a 3406 cat.clutch fan will not kick in with ac running or with height temp.need advise or wiring schematic and dies it have a relay for the clutch fan … read more
FIX-IT
FIX-IT
Comercial transport technician
Vocational, Technical or Trade Scho
829 satisfied customers
I need a headlight wiring diagram for a 1998 FLD120
I need a headlight wiring diagram for a 1998 FLD120 Freightliner with an N14 Cummings in it. VIN#1FUYDDYB0WL959791. Can you help me find? I am trying to find where the low-beam relay has constant powe… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,243 satisfied customers
I have a 322L ser.# 9rl00571. I just replaced the Governor
I have a 322L ser.# 9rl00571. I just replaced the Governor motor and thought I did a calibration. machine seemed to work fine. Had to track the machine a mile or so and somewhere along the way the thr… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,283 satisfied customers
I have a 2007 international 9400. The AC works in the
I have a 2007 international 9400. The AC works in the sleeper. But the AC controls do not work on the dash. The fan does not blow the knob that changes from floor to defrost it – does not control anyt… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,243 satisfied customers
I have an 02 freight liner with cat 3126 motor the starter
I have an 02 freight liner with cat 3126 motor the starter went out yesterday and now after I put new starter in it the truck will not turn over with the ignition switch but if I remove the battery wi… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
696 satisfied customers
Lost all power to cab on a 325bl when I was running it. No
Lost all power to cab on a 325bl when I was running it. No monitor screen no hydraulics no throttle or ignition. No light on on ecm under seat. Good batteries have 24 volts to all red wires in main pa… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,283 satisfied customers
GMC 6500: Have a 2006 GMC 6500 chassis cab truck with Isuzu
Have a 2006 GMC 6500 chassis cab truck with Isuzu 7.8 liter - VIN is 1GDJ6C138F412732 The brake malfunction light comes on and then the alarm sounds almost anytime the vehicle is running. Last year it… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,243 satisfied customers
I have a 2004 International 4300 DT466 that has periodically
I have a 2004 International 4300 DT466 that has periodically over the last year had trouble starting. Sometimes after running during the day, stopping and shutting down, it would begin the episode. Ot… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
254 satisfied customers
Helloooooo Spanky. I need the wiring diagram for a celtec
Helloooooo Spanky. I need the wiring diagram for a celtec plus ecm, it is in a 2001 volvo truck serial is n318308 the eng serial number is *****… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
696 satisfied customers
Hey spanky its roland again hopefully you can help me i have
Hey spanky its roland again hopefully you can help me i have a 1996 ford aeromax with a 11.1L detriot. seems i dont have power coming out of the junction box on the cab for the trailer brake lights. i… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
696 satisfied customers
Would like to know which pins are the ECM unswitched battery
Would like to know which pins are the ECM unswitched battery power pins on a 2001 Freightliner FL70 with the Cummins ISB engine. Had some no-start issues lately, and just replaced the VP44 due to hard… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,351 satisfied customers
I have a 2012 Pete 367. Clearance lights come on but no tail
I have a 2012 Pete 367. Clearance lights come on but no tail lights or marker lights on tractor and trailer. Any suggestions?… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
7,194 satisfied customers
Engine had bad miss and ran bad. Replaced fuel pump, fuel filters,
Engine had bad miss and ran bad. Replaced fuel pump, fuel filters, 2 injectors and wiring harness. Ran perfect for 150 miles and started missing again. Made it home and shut engine off. When tried to … read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
696 satisfied customers
Good Morning Jeremy,Having some electrical issues on a 2004
Good Morning Jeremy, Having some electrical issues on a 2004 Thomas Bus Model 590. No emeregency alarm (Hatch or rear window) No door left open alarm, No rear under seat passenger heater(s). All fuses… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
2,892 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

7,194 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

2,243 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