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
Its semi truck. ***************** 2016 VOLVO VNL. Close
Hey guys, I got a problem with a truck in my fleet, I was wondering if anyone ever went thru this? So we got a 2015 Volvo VN with a D13 paired to a ishift, the truck has roughly around 700,000 miles, we bought the truck from DOT, so we do not have the full service records of it! Basically the truck runs great when he bobtails, and even when it's got a light load, but the second the truck hooks up to a heavy load, 35,000lbs+ the truck's acceleration pedal stops working, even right away when the tractor hooks up to the trailer the acceleration pedal stops working! We at the fleet replaced the main engine harness, we replaced the speed sensor on the transmission, we replaced the leveling valve in the back, checked over everything, there's no codes. Now the funny part, after a couple times of turning the truck on and off, on and off, the acceleration pedal starts working, it runs fine! Then we the driver comes to a stop or red light with the heavy load the pedal stops working again! The driver has been recently turning it off and on and offf and on, but he found a small hack, he would dump the air out of the air bags, lower them, and the acceleration pedal starts working! Does anyone have a clue what this could be?… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
591 satisfied customers
Volvo vnl 780 2016. New air dryer and air governor. Purging
Volvo vnl(###) ###-#### New air dryer and air governor. Purging evry 60s. No air leading. The same issues was on the previous parts. Air dryer has leaks on the purge valve. So what's could be wrong. A… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
591 satisfied customers
2010 volvo d13 just got the dpf service and the truck keeps
2010 volvo d13 just got the dpf service and the truck keeps asking for regen it wont doi it while I'm driving . I have to park and do a manual regen but it only last 400 mile b4 the soot level ask for… read more
Edgar.T
Edgar.T
Forman
Associate
92 satisfied customers
Dont have a car class 8 vnl volvo big truck. 2000 vnl 770. 2
already typed all this in 15 mins ago no responseCustomer: Chat is completed… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
591 satisfied customers
I have a 2005 volvo vnl 780, volvo ved12 ,manual 13 speed
I have a 2005 volvo vnl 780 , volvo ved12 ,manual 13 speed transd transm … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
591 satisfied customers
2013 Volvo vnl 780 Commercial truck... I think I am on the
2013 Volvo vnl 780 Commercial truck... I think I am on the car side … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
591 satisfied customers
I have a 07 Volvo VNl it started and ran good pulled in the
I have a 07 Volvo VNl it started and ran good pulled in the shop to change a tire, the truck shut off like you turned off the key. Now there is no power to the key and nothing will work other than the… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
591 satisfied customers
Water comes out of power steering box and pushes coolant out
water comes out of power steering box and pushes coolant out of reservoir, excessive pressure in reservoir … read more
AMANDEEP MAHERU
AMANDEEP MAHERU
1 satisfied customers
I have a 2012 peterbilt 337 flatbed tow truck. When I got
I have a 2012 peterbilt 337 flatbed tow truck. When I got into it it had power but as soon as I went to start it it had no power after about 30 minutes it had power and started, and now since I shut o… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
591 satisfied customers
I have a 2014 volvo 780 sleeper cab. I changed the batteries
i have a 2014 volvo 780 sleeper cab. I changed the batteries and now the sleeper cab has zero power. The operators station has electrical power fine. Is there a reset switch that I am missing? Volvo i… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
591 satisfied customers
I have a 2015 Volvo 780..D13 and I keep getting the ECU
I have a 2015 Volvo 780..D13 and I keep getting the ECU maintenance code..I don't lose any power or have any mechanical reactions due to the code but I did notice it gets triggered every time there's … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
591 satisfied customers
Start the engine, turn on ac it is blowing cold air after
start the engine, turn on ac it is blowing cold air after 5miles no cold air. then turn off ac start driving another 2 miles then again back on ac again .the air blowing cold what is the problem … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
591 satisfied customers
Same problem as previous truck code 5443 fmi 13 we know what
same problem as previous truck code 5443 fmi 13 we know what the code is we need to know the fix what is causing the low pressure? what component is causing the low pressure ? … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
591 satisfied customers
2012 Volvo VNL 780, code mid130 psid 204 fmi 8. 5-9 times a
Hi,2012 Volvo VNL 780 , code mid130 psid 204 fmi 8. 5-9 times a day the gas pedal cut of, turn off engine , start , 2-3 hours and again the same … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
591 satisfied customers
I have a Volvo VNL 780 with a Cummins ISX motor, it is not
I have a Volvo VNL 780 with a Cummins ISX motor, it is not cranking and I get no electrical to it but the batteries are full … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
591 satisfied customers
2007 Volvo 780 vn12 Eaton fuller auto. Driving normal and
2007 Volvo 780 vn12 Eaton fuller auto. Driving normal and just shut down. Let sit overnight and it starts. … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
14,861 satisfied customers
I have an 2007 volvo truck vnl series everytime i make a
i have an 2007 volvo truck vnl series everytime i make a left turn the truck shuts off … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
14,861 satisfied customers
i have a 07 volvo vnl 780 with a ultra shift eaton trans i
i have a 07 volvo vnl 780 with a ultra shift eaton trans i was cycling the key on and off to check the lights and now the trans wont go in to N nutural so the truck wont start I disconnected the batte… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
420 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

14,861 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

5,353 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

5,115 satisfied customers

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

Jeremy

Jeremy

Certified Truck/Bus Technician

2,756 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

1,947 satisfied customers

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

cumminsdr

cumminsdr

Mechanic

1,886 satisfied customers

All types of Cummins applications

Chris (aka-Moose)

Chris (aka-Moose)

Technician

641 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