Medium and Heavy Trucks
Connect one-on-one with a technician who will answer your question
Expert avatar
Daniel Wilson,
3,406 satisfied customers
Owner at DJ Wilson
Pearl avatarSteve Pearl, Assistant
Technicians are Online Now

Have truck repair questions? Ask an Expert

Verified technicians are online around the clock and ready to answer your question online or by phone. 
Related Medium and Heavy Trucks questions
Need help with cat cat in 2006 f650 hard start run bad. C7.
Need help with cat cat in 2006 f650 hard start run bad … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,871 satisfied customers
I have a 2015 International 4300 flatbed tow truck with a
Hi, I have a 2015 International 4300 flatbed tow truck with a 6.7 Cummins, 15,000 miles ,new to me truck. Air compressor is a Wabco single cylinder, its pretty loud, clacking, sounds like drumsticks o… read more
Steven
Steven
Triage Tech/Shop Foreman
Associates
82 satisfied customers
I am at Cornerstone Mine in Az the mine is not in operation
I am at Cornerstone Mine in Az the mine is not in operation now,it is in a rework..upgrade status and we have a Nordberg 4' STD. I need inspected..overhaul or replace? … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,562 satisfied customers
The machine will not move (forward or reverse) and the
The machine will not move (forward or reverse) and the bucket will not move an any direction … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,406 satisfied customers
I have 2005 freightliner century with detroit 60 series,
Hi, i have 2005 freightliner century with detroit 60 series, engine suddenly stop on highway, its cranking but not starting, oil and water guages goes all way up and back to sezo … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,562 satisfied customers
I NEED ADVICE FROM A 2014 hINO 268 MECHANIC? 2014 hINO 268..
Yes. I am trying to get a second opinion regarding a potential major problem.… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,562 satisfied customers
I just need to know how to set the timimgdegree on this
I just need to know how to set the timimgdegree on this engines It on … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
3,251 satisfied customers
I have a 98 freightliner century it starts but there's no
I have a 98 freightliner century it starts but there's no electrical power the power outlets known work the window mode work cigarrette lighter don't work … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,406 satisfied customers
Princeton Police Department has a Cummins Power Generation
Princeton Police Department has a Cummins Power Generation Emergency Generator. The control panel is showing a maintenance code of 3661. We don't have a manual for the generator set and we are looking… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,562 satisfied customers
2009 international transtar maxxforce 11/13 vin
2009 international transtar maxxforce 11/13 vin *****************. I'm getting code dtc 2247 spn 8353 hp fuel pump erratic quantity balancing as soon as engine is turned on. I also get code dtc 2245 s… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,406 satisfied customers
I have a 2009 international transtar maxforce 11/13. Vin
I have a 2009 international transtar maxforce 11/13. Vin *****************. I'm getting code dtc 2247 spn 8353 hp fuel pump erratic fuel quantity balancing, as soon as the engine turns on. I'll someti… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
255 satisfied customers
I have 2006 sterling acterra with the Mercedes engine. My
I have 2006 sterling acterra with the Mercedes engine. My problem is that the truck have check engine and wont go more them 60 mph that u think it can be . I fix some oil link on the pass the machine … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,406 satisfied customers
I have a 95 cat challenger 75c with 3176 wont start at all
Hi I have a 95 cat challenger 75c with 3176 wont start at all check flash codes said no rpm signal I changed the speed sensor check wires and voltage to the plug all seems good then I see you said fue… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,289 satisfied customers
06 freightliner 14.0 Detroit diesel. when we got it. it
06 freightliner 14.0 Detroit diesel. when we got it. it wasn't running. from what the driver said it died on him when he was checking his brakes. vehicle hasn't started since. about two days ago. we a… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,406 satisfied customers
Can you please give me step by step instructions straight to
Hi,Can you please give me step by step instructions straight to the point on how to remove the main radiator from a 2012 international with a maxxforce 11? This has another radiator in front of it, va… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,406 satisfied customers
06 Volvo D12 it died while driving. You 06 Volvo D12 it died
06 Volvo D12 it died while driving. JA: What's the make/model/year of your truck? Engine type? Customer: You 06 Volvo D12 it died while driving JA: Are you fixing your truck yourself? What have you tr… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
255 satisfied customers
I need a Caterpillar engine technician who can send me
Hi , i need a Caterpillar engine technician who can send me factory password ***** i just winflash an ecm and need to change the personal module code… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,406 satisfied customers
I have a heavy duty truck shop and work on some AG equipment
I have a heavy duty truck shop and work on some AG equipment as well. We did an out of frame overhaul on a Cat Challenger 75D Ag track tractor with a 3176C/C-12 40 pin ECM engine. Have completed the t… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,406 satisfied customers

Common medium and heavy truck questions resolved on JustAnswer


Before you ask the expert your question you'll need to know the make and model of your truck, and have the manuals and equipment logs ready.


The medium and heavy truck expert will also need to narrow down the problem to a specific component. To do this, they'll need a solid understanding of the symptoms of the problem.


Some of the other things an expert is likely to ask you about include:


  • What are the symptoms of the problem?
  • Are there any additional problems in other related systems?
  • What were the conditions when the problem occurred?
  • When and how frequently does the problem occur?

With this information, a medium and heavy truck expert should be able to diagnose the issue and help you to find a solution.