Medium and Heavy Trucks

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Related Medium and Heavy Trucks Questions
The ac compressor wont engage (compressor clutch) on tripac
The ac compressor wont engage (compressor clutch) on tripac apu unit. Air is blowing but compressor wont kick in. No codes on the unit . Everything else is working . All 3 fans are running . … read more
SeanM
SeanM
Fleet Maintenance Manager
High School Diploma
14 satisfied customers
I need Help with a 2010 international Prostar the A/C Does
I need Help with a 2010 international Prostar the A/C Does not cool down, a/c compressor seems to be working, I replaced the ac condenser, expansion valve and ac evaporator, but still not working anyo… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
214 satisfied customers
I have a Peterbilt 385 here in. Our shop. I have checked
I have a Peterbilt 385 here in. Our shop. I have checked relays and fuses and low pressure switch. For a 2006 Peterbilt vin 733051. Customer did say he heard a pop but all fuses are good even checked … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,563 satisfied customers
I did an ac service on my 2009 Volvo Vnl semitruck. Changed
Hi, I did an ac service on my 2009 Volvo Vnl semitruck. Changed the ac condenser, ac compressor, ac dryer, and thermal expansion valve. We vacuumed the system for about an hour after everything was ho… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
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We have a 1999 frht classic with a 12.7 detroit in it. We
We have a 1999 frht classic with a 12.7 detroit in it. We have been having issue with blowing the high pressure discharge hose on the A/C compressor. Everytime it happens, we have to replace the Compr… read more
Expert
Expert
10,442 satisfied customers
1996 Peterbilt. Ac cools idling but does not when going down
1996 Peterbilt. Ac cools idling but does not when going down road … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
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2002 International 4300 DT466E engine, AC seams cold outside
2002 International 4300 DT466E engine, AC seams cold outside not in 1.9 oz freon added all new parts, in and out. Checked outside air door closed, blocked of heater hoses. Pressure 100 high and 30 low… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
214 satisfied customers
I need to know how much Freon goes into my 89 Peterbilt 362
I need to know how much Freon goes into my 89 Peterbilt 362 after vacuuming system … read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
420 satisfied customers
I have a Freightliner Columbia. Vacuumed changed air dryer
I have a Freightliner Columbia.Vacuumed changed air dryer and charged ac to manufacturer specifications of 3.75lbs of Freon it has a new compressor that I put in. The compressor keeps cycling on and o… read more
Expert
Expert
10,442 satisfied customers
I have a 2011 peterbilt with a paccar engine. the cooling
i have a 2011 peterbilt with a paccar engine. the cooling fan seems to run almost all the time since the weather is warmer and i use the a/c. it really kills the power of the motor … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
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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 359 Peterbilt replace AC compressor drier expansion
I have a 359 Peterbilt replace AC compressor drier expansion valve and evaporator coil it gets real cold but evaporator wants to freeze up on the ends after it runs for a while what could be the probl… read more
Expert
Expert
10,442 satisfied customers
Having a problem with my a/c in my big rig. I can have it
Hi having a problem with my a/c in my big rig. I can have it on and sometimes it can be on for a hour or two, and sometimes a min or two. I check the freon and it's good. I notice that if I have the f… read more
Pete
Pete
Automotive Diagnostic Specialist
General auto certifications
37,349 satisfied customers
I have a 2004 freightliner Columbia and it has a problem
Hello I have a 2004 freightliner Columbia and it has a problem that the ac system it dosnt blow cold air I took it to a shop and they changed the condensor. Ecaporaror, the ac compressor, the expansio… read more
Pete
Pete
Automotive Diagnostic Specialist
General auto certifications
37,349 satisfied customers
Gentlemen, I could really use an A/C expert here. I have a
Gentlemen, I could really use an A/C expert here. I have a KW T800b VIN 1XKDD4OX33R968950 09/2014 Cummins ISX ESN 60812484 This Truck has already been to two or three other shops before I got it. It h… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
420 satisfied customers
I am working on a 2007 International 9900IX with a Cummins
I am working on a 2007 International 9900IX with a Cummins ISX. The A/C compressor will cycle on for 3 or 4 seconds then cut off. I have little to no experience on this brand of truck and this style o… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,563 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
4,563 satisfied customers
I have a 96 kenworth t 800 with a n14 select plus in it and
i have a 96 kenworth t 800 with a n14 select plus in it and the air conditioning with a full charge with pull 25 inchs of vacuum and not get cold. what could possibly be the problem the compressor?… read more
diesel-tech
diesel-tech
Owner of landrys truck repair llc
136 satisfied customers
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Daniel Wilson

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Chris (aka-Moose)

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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.

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