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Related Medium and Heavy Trucks Questions
Have a 2006 peterbuilt and ac will not cool what can i check
have a 2006 peterbuilt and ac will not cool what can i check ,it is fully charged and have had filter tube changed and dryer also… read more
Nich1019
Nich1019
Cummins/Caterpillar Technician
Vocational, Technical or Trade School
2,022 satisfied customers
Think I need expansion valve on 4300 International. I never
think I need expansion valve on 4300 International … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
2015 peterbuilt with an ISX. Ac compressor cut in and out
2015 peterbuilt with an ISX. Ac compressor cut in and out won't cool below 72.3 f. New expansion valves, hi and low switches and ac compressor … read more
Nich1019
Nich1019
Cummins/Caterpillar Technician
Vocational, Technical or Trade School
2,022 satisfied customers
My air pressure keeps going down and gets to 60 psi. It
My air pressure keeps going down and gets to 60 psi. It stays there for a couple of minutes and then starts to build pressure. This happens over and over. I took the air line loose coming out of the c… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
562 satisfied customers
Kenworth T660 ac work ok on idle when on road high rpm it
Kenworth T660 ac work ok on idle when on road high rpm it will not work . So I out truck kn high rpm and found low side line freezing near evaporator and expansion valve the thick line coming from ac … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
214 satisfied customers
I'm having with air pressure on a 379 Pete with vin #
I'm having with air pressure on a 379 Pete with vin # ***************** it's only building 90 psi on primary side no air leaks and I have tried a new compressor, still 90 psi no secondary at all no ai… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
562 satisfied customers
Ac not cold and found o ring leak at condensor. I'm working
Ac not cold and found o ring leak at condensor. I'm working on a 2013 Pete 550 HP 379. Evacuating and recharged. Now cold outlet temp and cycling. High side only 90#..low side cycle between 26 and 40 … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
562 satisfied customers
Flushed system again, replaced dryer receiver and expansion
Flushed system again, replaced dryer receiver and expansion valve. No other restrictions. Now the low side goes up to about 70 and the high side will just keep going up. When turned off the low side c… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
I HAVE A 2007 WESTERN STAR, VIN #Y23892 WITH A/C PROBLEMS. I
I HAVE A 2007 WESTERN STAR, VIN #Y23892 WITH A/C PROBLEMS. I HAVE REPLACED COMPRESSOR, DRYER, AND EXPANSION VALVE. BLEW SYSTEM OUT BEFORE CHARGING. ALL LINES SEEMED CLEAR. LOW PRESSURE STAYS AT 20-25 … read more
Expert
Expert
10,508 satisfied customers
Peterbilt387, yr 2007. air conditioner problems. air vent is
peterbilt387, yr 2007. air conditioner problems. air vent is not cool as it should. evaporator coil freeze, compressor not recycling… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
214 satisfied customers
2010 Mack CHU with MP8. A/C runs at 60-70lbs even with low
2010 Mack CHU with MP8. A/C runs at 60-70lbs even with low freon. The A/C head pressure will go up to 150lbs, but as soon as the truck purges air from the air dryer, I lose all head pressure. It makes… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
I have a 96 international 9400 eagle and have had some a/c
I have a 96 international 9400 eagle and have had some a/c issues. The compressor stopped working so I put a new one on along with a new dryer. The a/c worked a few days and quit. We put a new expansi… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
214 satisfied customers
Buddy my name is ***** ***** have big truck shop i working on
hi buddy my name is ***** ***** have big truck shop i working on a frightliner came with a/c compressor locking up i replaced with new compressor expenions value dryer flushed system pulled vac and st… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,756 satisfied customers
I have a VOLVO 1999 with a cummins engine N-14, I always
Hello I have a VOLVO 1999 with a cummins engine N-14, I always had problems with the AC not working and cooling properly... I replace the AC Dryer, Ac Compressor, Expansion Valve, I tested for leaks a… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
SB 3 Thermoking shows codes 26 and 32. What to do?
We have a SB 3 Thermoking and it has faults 26 and 32. Refrigeration capacity low. What does this mean and what should we do?… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
5,115 satisfied customers
Freightliner columbia: I am working on a freightliner columbis,the
I am working on a freightliner columbis,the cold line from the sleeper A/C to the compressor is freezing up and I am not getting freon circulating through the cab evaporator. I have individually flush… read more
diesel-tech
diesel-tech
Owner of landrys truck repair llc
136 satisfied customers
I have an A/C question on a 2010 International. The A/C has
I have an A/C question on a 2010 International. The A/C has a full charge, and the compressor clutch is working, but is is not cooling. The compressor is staying engaged and the pressure are staying a… read more
sevn103
sevn103
232 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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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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