Medium and Heavy Trucks

Have truck repair questions? Ask an Expert

Ask an Expert,
Get an Answer ASAP!

Related Medium and Heavy Trucks Questions
I have an 04 gmc t7500 that had a bad ac clutch we replaced
i have an 04 gmc t7500 that had a bad ac clutch we replaced the compressor but it wont turn on unless i jump it i have no wiring diag to go by can you help me… read more
Steven
Steven
Triage Tech/Shop Foreman
Associates
11 satisfied customers
I have a New Holland TL 100 with cab and A/C. The compressor
I have a New Holland TL 100 with cab and A/C. The compressor will only turn on if I run a wire directly from the compressor to the battery. What is causing the compressor not to kick in? Thanks … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,803 satisfied customers
I have a 1997 international 9300 eagle and am having
I have a 1997 international 9300 eagle and am having electrical issues with the A/C compressor engaging … read more
Andy
Andy
Truck Diagnostic Technician
Vocational, Technical or Trade School
2,097 satisfied customers
2000 Isuzu NPR - Wiring diagram for a/c system. 2000 Isuzu
charge a/c system according to the specs and test the a/c compressor and its working if I give direct power … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,243 satisfied customers
Working on a 1998 Peterbilt 379 with 3406E. And I cannot get
Working on a 1998 Peterbilt 379 with 3406E. And I cannot get the compressor relay to switch on to power up the compressor which is new along with new accumulator and condenser. I can power it up at fi… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,803 satisfied customers
2001 Isuzu FRR Medium Duty Straight Truck: Relay to
2001 Isuzu FRR Medium Duty Straight Truck: Relay to Condenser Fan Motor is buzzing constantly. The only way to eliminate the noise is to remove the fuse that supplies power to this relay. I also notic… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,243 satisfied customers
2006 Volvo VNL780 with a Cummins ISX. Trying to repair A/C
2006 Volvo VNL780 with a Cummins ISX. Trying to repair A/C have no power to compressor have lots of refrigerant in it. Don't have any 12v power to Trinary switch and no power at Thermostatic switch. N… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,243 satisfied customers
I have a 94 Peterbilt 379 with an a/c issue. There is no power
I have a 94 Peterbilt 379 with an a/c issue. There is no power to the compressor, no power to ether the high or low pressure switches. The a/c relay only has power to the 86 and not the 30 which I hav… read more
William Herren
William Herren
A.A.S.
2 satisfied customers
I HAVE A 97 FRTLINER CENTURY CLASS, A/C CLUTCH WILL NOT
I HAVE A 97 FRTLINER CENTURY CLASS, A/C CLUTCH WILL NOT ENGAGE. THE GIVEN INFO: NEW YORK COMPRESSOR,NEW DRIER,NEW LOW SIDE SENSOR,NEW HIGH SIDE SENSOR,SYSTEM HELD VACUUM , THEN PUT IN 2 CANS FREON, NO… read more
FIX-IT
FIX-IT
Comercial transport technician
Vocational, Technical or Trade Scho
829 satisfied customers
I have a 1999 Volvo semi. Having issue with the a/c. We have
I have a 1999 Volvo semi. Having issue with the a/c. We have replaced a/c compressor, receiver drier, both pressure switches, and apad. We also do have the correct amount of freon in system. When we s… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,803 satisfied customers
I have a 99 Freightliner CENTURY, vin XLA02952, a/c compressor
I have a 99 Freightliner CENTURY, vin XLA02952, a/c compressor engages very intermittently.… read more
Roy
Roy
shop foreman
Associate Degree
4,476 satisfied customers
2001 CH SERIES MACK, THE A/C SYSTEM HAS CORRECT FREON, THE
+2001 CH SERIES MACK, THE A/C SYSTEM HAS CORRECT FREON, THE HIGH AND LOW PRESSURE SWITCHES TEST GOOD, IF WE ENGAGE COMPRESSOR CLUTCH MANUALLY THE SYSTEM BLOWS COLD, WE NEED TO KNOW THE CIRCUIT FROM TH… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,803 satisfied customers
when I took it in the compressor was running an so was the
when I took it in the compressor was running an so was the fan clutch ..they said all it was to be wrong was a low pressure switch an needed to evac an recharge system ..it is not necessary to evac an… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
2,892 satisfied customers
I have 98 kenworth and the a/c does not work. I have replaced
I have 98 kenworth and the a/c does not work. I have replaced the compressor and clutch, recharged it and still will not engage… read more
kwpetetech
kwpetetech
Shop Foreman/ Lead Technician
Associate Degree
40 satisfied customers
I have a 94 Freightliner FLD. That has not been running for
I have a 94 Freightliner FLD. That has not been running for 8 years. Everything seems to be operating properly except the AC. I tried to add frion because the compressor won't engage and it doesn't ta… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
2,892 satisfied customers
I have a 2007 international that we replaced the a/c condensor
I have a 2007 international that we replaced the a/c condensor on because it had a hole in it. We installed the new condensor and pulled a vacuum. The compressor won't kick on so I manually engaged it… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
2,892 satisfied customers
It started by the ac fan staying on after I turned the ignition
It started by the ac fan staying on after I turned the ignition switch off. I would have to then turn the ac switch off manually. this morning I noticed that the ac compressor clutch stays engaged as … read more
Jim
Jim
Diesel tech.
212 satisfied customers
This is an A/C question. I was talking with the parts counter
This is an A/C question. I was talking with the parts counter and service techs about an a/c problem with my '05 w9. I thought the compressor had frozen up because the a/c clutch will not engage. It s… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
696 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

2,803 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

4,530 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

2,892 satisfied customers

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

Jeremy

Jeremy

Certified Truck/Bus Technician

2,243 satisfied customers

ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, EPA 608/609 HVAC Certified, Steering/Suspension and ABS/Brakes Technician

cumminsdr

cumminsdr

Mechanic

1,351 satisfied customers

All types of Cummins applications

Curtis B.

Curtis B.

Technician

991 satisfied customers

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

dieseldan55

dieseldan55

Contractor

74 satisfied customers

Road Service mechanic for Volvo Construction.

< 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