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'm working on a 2018 Freightliner MT45, and I have no high
I'm working on a 2018 Freightliner MT45, and I have no high beams. All other lights are functioning properly. Head lights work in the low beam setting. When you try to put high beams on and pull the m… read more
Joe Green
Joe Green
Trainer and Tech
333 satisfied customers
2015 freightliner cascadia turn signal are hyperflashing ,I
2015 freightliner cascadia turn signal are hyperflashing ,I do have led lights on the truck, I can't find the flashing relay or turn signal relay in not sure it they are the same relay thanks and God … read more
Expert
Expert
10,448 satisfied customers
2014 Freightliner Coronado. Trailer ABS light is coming on
2014 Freightliner Coronado. Trailer ABS light is coming on when headlights are switched to high beam. Just started happening. … read more
BrentR718
BrentR718
13 satisfied customers
Ive got a kenworth w900 I wanted to replace my headlights.
Ive got a kenworth w900 I wanted to replace my headlights. The stock lights are H4656 2A for the low beams 1A for the high beams. I bought LED low beams installed and when I turn lights on the high be… read more
james Roberts
james Roberts
Maintenance assistant
Vocational, Technical or Trade School
3 satisfied customers
I installed MHLE-4X6LO LED headlights in 07 T800. Now the
I installed MHLE-4X6LO LED headlights in 07 T800. Now the high beam indicator flashes when lights are on. … read more
james Roberts
james Roberts
Maintenance assistant
Vocational, Technical or Trade School
3 satisfied customers
I need help figuring out what pin is what on a Freightliner
I need help figuring out what pin is what on a Freightliner 2018 cascadia headlight … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
535 satisfied customers
What is the largest watt inverter you can install on a 2016
what is the largest watt inverter you can install on a 2016 Freightliner Cascadia … read more
Chris (aka-Moose)
Chris (aka-Moose)
Technician
588 satisfied customers
Do you deal with big trucks. 2012 Freightliner Cascadia.
Do you deal with big trucks JA: What is the make/model/year of your car? Customer: 2012 Freightliner Cascadia JA: Are you fixing your Cascada yourself? What have you tried so far? Customer: Check fuse… read more
Keiphun Sowell
Keiphun Sowell
Owner Brothers Restoration/Troubleshoot
AutoDiesel Technology
1,961 satisfied customers
2016 Freightliner Cascadia A/C clutch will not engage. It is
2016 Freightliner Cascadia A/C clutch will not engage. … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
214 satisfied customers
I have 2016 cascadia with headlight problmes. Cascadia
im attemping to,,, new bulbs,, there is no power on the left side low beam … read more
Expert
Expert
10,448 satisfied customers
I can't find the fuse box for the trailer on the 2019 fl
I can't find the fuse box for the trailer on the 2019 fl cascadia. Fuse is blown. I know where the main fuse box is on the passenger side and power box on the same side under the hood. Where is it? … read more
Expert
Expert
10,448 satisfied customers
I am trying to install LED headlights in a 2009 KW W900L. I
I am trying to install LED headlights in a 2009 KW W900L. I have to put in a relay system 4 the high beams. Is there a easy way to find the highbeam hot wire from the firewall to the headlights? … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
214 satisfied customers
95 Freightliner fld120 headlight problem low beam works good
95 Freightliner fld120 headlight problem low beam works good go to high beam go back to low beam and right side high beam stays on … read more
Expert
Expert
10,448 satisfied customers
2010 Freightliner cascadia the passenger side beam and low
2010 Freightliner cascadia the passenger side hi beam and low beam lights don't work. The bulbs are good and there is power there. Any thoughts?… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
5,904 satisfied customers
Western star no headlights, Western star4964ex, No power
No power from headlight switch to relay on fuse panel … read more
Expert
Expert
10,448 satisfied customers
99 fld 120 headlight wiring problem. On low beam the left
99 fld 120 headlight wiring problem. On low beam the left headlight dims every 10 seconds or soand I can hear the breaker clicking off and on. When this happens, the left turn signal indicator light o… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
5,904 satisfied customers
This is an unusual question: I'm working on a heavy duty
I'm working on a heavy duty vehicle (truck) made by AutoCar. I'm trying to replace the current 7" round halogen headlights with LED headlights. It has daylight running lights using the following relay: 301-1c-c-r1-u01-12vdc. I think the relay is not compatible with LEDs. Is there an compatible LED relay that is available? … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,747 satisfied customers
I have a 2003 fl70 freightliner moving truck. Recently it
I have a 2003 fl70 freightliner moving truck. Recently it has had some bizare electrical issues. With the key off and just flicking the left turn signal, the hazard lights come on and the digital odom… read more
Jim
Jim
Diesel tech.
212 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

4,911 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