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
How are ya? I have a 2000 Peterbilt 378 with C15, 6NZ48036,
Good morning, how are ya? I have a 2000 Peterbilt 378 with C15 , 6NZ48036, I pulled the intake y-pipe and found 1 end had been distorted probably from over tightening and it has sucked in some dirt. S… read more
Nich1019
Nich1019
Diesel Technician
Vocational, Technical or Trade School
41 satisfied customers
I have volvo d13 semi truck, they change the air dryer and
Hello i have volvo d13 semi truck , they change the air dryer and truck is releasing air every 30 sec park or while driving its so annoying , they told me from the shop could be the fan clutch hub??? … read more
Nich1019
Nich1019
Diesel Technician
Vocational, Technical or Trade School
41 satisfied customers
C15 using 1 gallon oil in 350 miles with no sign of where it
c15 using 1 gallon oil in 350 miles with no sign of where it is going. no leaks. not smoking. can not figure where its going. … read more
Nich1019
Nich1019
Diesel Technician
Vocational, Technical or Trade School
41 satisfied customers
Where is the compressor for brakes located on a ISB .6.7
Where is the compressor for brakes located on a ISB .6.7 ...2008 model ? I'm wanting to replace the governor but can't find it … read more
james Roberts
james Roberts
Maintenance assistant
Vocational, Technical or Trade School
3 satisfied customers
93 International 8200 w/ L10 air compressor leaks air back
93 International 8200 w/ L10 air compressor leaks air back through air intake down too 100psi then holds pressure. I assume it has a check valve malfunction, Am I on the right track, can it be repaire… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
562 satisfied customers
I have an 1999 Peterbilt 379 with a Detroit Series 60 11 1L
Hello, I have an 1999 Peterbilt 379 with a Detroit Series 60 11 1L engine. This morning the air dryer started to purge constantly every 30 seconds. Once the pressure is built up the air dryer purges a… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
562 satisfied customers
Having a hard time building air. ISX 15 Cummins 2013
I am. I've put a new air dryer on, a new air compressor on changed the dryer filter, changed the dryer governor. I used shop air to check flow in all of the air lines to both tanks and pushed shop air through the signal air line … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
562 satisfied customers
2009 international prostar purges air every 15 seconds
2009 international prostar purges air every 15 seconds already replaced governor, purge valve, air compressor head for the unloader valve and a new signal line from governor to the air compressor. Tes… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
562 satisfied customers
I have a 2007 freightliner columbia mbe4000 i cant get it to
I have a 2007 freightliner columbia mbe4000 i cant get it to built any air at all i replaced the dryer with governor on it I replaced the primary ait tank and check valve on fron of it along with all … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
Truck Vin H72526 cummins ism air compressor part number..
Truck Vin H72526 cummins ism air compressor part number.. problem started a couple days ago..truck would build way too much pressure 140+ psi. I changed the governor out and it built and stayed perfec… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
562 satisfied customers
Second opinion] I have replaced 4 air compressores in the
Second opinion] I have replaced 4 air compressores in the last 2 years and they all started to pump oil again. The last one was put on in December and started leaking immediately. The shop told me the… read more
Dorian Conley
Dorian Conley
Heavy Duty Diesel Engine Technician
Vocational, Technical or Trade School
Will be replacing my 3rd air compressor in a week. Can't
Will be replacing my 3rd air compressor in a week. Can't figure out why they keep burning up. Coolant lines are free and clear and it operates normal for about 500 miles then boom! It's done. Go crazy… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
5,115 satisfied customers
Sorry, I hit the wrong button earlier and closed out my
Sorry, I hit the wrong button earlier and closed out my window before entering credit card info. Do you have mechanics that are knowledgeable about big trucks? … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
214 satisfied customers
I have a 2012 KW T800 with 525 cummins. Wont build air. The
I have a 2012 KW T800 with 525 cummins. Wont build air. The compressor is pumping air to the ADIS air dryer but no air goes out to the tanks. I figured I would just replace the air dryer with a new on… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,756 satisfied customers
1994 international 4900. we have been having severe problems
1994 international 4900. we have been having severe problems with the air freezing up on it and we want to bypass the air dryer. what are the ramifications of bypassing the unit? I would much rather s… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
5,115 satisfied customers
I am working on a 1991 Pete with a L10. I just updated the
I am working on a 1991 Pete with a L10. I just updated the dryer with a AD-9 dryer. The dryer i took off i could not identify. It looked close and had 3 lines hooked up to it like the AD-9. The proble… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,756 satisfied customers
I have a 06 379 day cab that leaks oil down the outside of
I have a 06 379 day cab that leaks oil down the outside of steering colomn and down steering shaft to floor... Leaks up in dash somewhere?… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,756 satisfied customers
Peterbilt 377 A/E: Hi my name isXXXXX manage a small trucking
Hi my name isXXXXX manage a small trucking fleet. We have a 1997 Peterbilt with a N14 in it. We have replaced the compressor 3 times in the last year and 1/2 due to leaking oil (all under warranty so … read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,886 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

6,062 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