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
Apu want start. I will have to get it be back in a minute.
yes just installed it it runs or was running charged the ac yesterday compressor com on runs 20 seconds shuts down wait a while comes back on shuts back down now it gives engine code tried the reset button turning it on again code pops back up … read more
RyanY78
RyanY78
Vermeer field service technician
Heavy equipment technician
189 satisfied customers
I have a thermo king apu on my tractor trailer and I haven't
I have a thermo king apu on my tractor trailer and I haven't been able to get it to work. It gives me this triangle, with an exclamation point in the middle and pretty much shuts down??? … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
14,847 satisfied customers
My TriPak exhaust Filter wont regenerate. The dash light
My TriPak exhaust Filter wont regenerate. The dash light flashes but the voltage does not drop half a volt like it normally does. … read more
Roy Belding
Roy Belding
7,519 satisfied customers
Got Thermoking Apu coming up error I will attach picture
Got Thermoking Apu coming up error I will attach picture shorty , I not cranking before it was showing eng so I reset the engine switch but now it's showing some other codes that's in picture… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
14,847 satisfied customers
Thermoking APU giving alt code and shuts off. Can turn right
Thermoking APU giving alt code and shuts off. Can turn right back on and it will run a while and do same thing. Repacked belt,checked all connections and have put tester on alt. It is charging every w… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
414 satisfied customers
I've got a ThermoKing SB-190 throwing a code for clock time
I've got a ThermoKing SB-190 throwing a code for clock time set and low voltage. I've got 12.5 at battery and on both big wires on interface board. I've also changed the interface board. This was a in… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
14,847 satisfied customers
No power to thermo tripak apu at the control panel. shut off
no power to thermo king tripak apu at the control panel. shut off now no lights. checked the 50 amp fuse at battery box it's ok. not sure what else could be wrong. … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
14,847 satisfied customers
Second opinion] I have a Thermoking Tripac evolution not
second opinion] I have a Thermoking Tripac evolution not starting, it cranks but won't start also I removed the hose going to the filter housing when I turn the controller on the lift pump starts send… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
I have a Thermoking Tripac evolution not starting, it cranks
I have a Thermoking Tripac evolution not starting, it cranks but won't start also I removed the hose going to the filter housing when I turn the controller on the lift pump starts sending fuel but as … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
14,847 satisfied customers
We transferred an apu from one unit to another and it ran
we transferred an apu from one unit to another and it ran for a 30 minutes and it stopped and code En9 came up. Now when you turn it on it comes on for 5 seconds and stops and code En9 is back. Any id… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
I have a thermos tripak apu the apu ran but wasn't charging.
I have a thermos king tripak apu the apu ran but wasn't charging. we determined the alternator was bad. put a new alternator from thermal king on today and it runs a few minutes and dies with alt code… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
14,847 satisfied customers
Trying to reset fault code eng. I 't see a reset button. I
Trying to reset fault code eng. I don't see a reset button. I see the evaporator under bunk but no other box with white wires. Where would reset button be… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,740 satisfied customers
When I turn on my apu the fan starts then shows system fault
when I turn on my apu the fan starts then shows system fault (engine) what do I do to fix oil water fine.… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
14,847 satisfied customers
Thermoking tripack apu Tripack was working. Woke up during
Thermoking tripack apu Tripack was working. Woke up during the night and truck switch had been turned on. Now tripack will not start. Stopped at thermoking dealer. They said curcuit board was bad. Rep… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
14,847 satisfied customers
, I have a 2007 freightliner with a thermoking apu. I
, I have a 2007 freightliner with a thermoking apu. I had a rebuilt alternate installed and a p.m. done on my apu. I ran it 4 hours since then. Yesterday I turned it on and the starter would engage a … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
14,847 satisfied customers
I have any older Tripak unit. It has the green lights on the
I have any older Tripak unit. It has the green lights on the controller. The unit starts and functions fine. I recently serviced the Tripak and changed batteries in the truck. When I leave the truck u… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
14,847 satisfied customers
Hi Wayne my apu has the ENG code. I turned it off pushed the
Hi Wayne my apu has the ENG code. I turned it off pushed the reset button. Code still pops up. I can hear the ignition sound but the unit is not attempting to start. Do the boards go out often? Or cou… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
14,847 satisfied customers
Apu wont start. Was running and shut off. Thought it had jelled
Apu won't start. Was running and shut off. Thought it had jelled due to cold. I changed both fuel filters. Unit turns over and tries to crank but won't. I even tried a shot of ether to no avail. Is th… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
14,847 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

4,737 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

5,234 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

14,847 satisfied customers

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

Jeremy

Jeremy

Certified Truck/Bus Technician

2,740 satisfied customers

ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, Network Engineer specializing in CAN faults, Aftertertreatment, and vehicle communications

cumminsdr

cumminsdr

Mechanic

1,700 satisfied customers

All types of Cummins applications

Curtis B.

Curtis B.

Technician

1,571 satisfied customers

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

Chris (aka-Moose)

Chris (aka-Moose)

Technician

353 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