Medium and Heavy Trucks

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Related Medium and Heavy Trucks Questions
I have a 2016 w900 with the Cummins motor. My heat works in
I have a 2016 w900 with the Cummins motor. My heat works in the sleeper but blows out cold air in the front of the cab. What could be the possible problem? … read more
NicholasM1019
NicholasM1019
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Vocational, Technical or Trade School
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Where is the blend door on a 2009 387? Cummins isx, 2009
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2015 Kenworth T680. Blowing cold air in the front. Heat does
2015 Kenworth T680. Blowing cold air in the front. Heat does work in the sleeper … read more
BrentR718
BrentR718
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I have a 2013 Freightliner vin 1fujghdv0dsfa0570. The ac is
I have a 2013 Freightliner vin 1fujghdv0dsfa0570.The ac is blowing cold out of the dash, but hot out of the bunk.Where do I start w troubleshooting ?… read more
Wayne
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Vocational, Technical or Trade Scho
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2018 kenworth T680 coolant pushing from expansion tanks to
2018 kenworth T680 coolant pushing from expansion tanks to overflow tank. Started at 200k miles, overhauled at 575k miles. New expansion/overflow tank, new caps, new egr cooler. No overheating problem… read more
cumminsdr
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I need to know where the location of the A/C and heater
I need to know where the location of the A/C and heater switch is? … read more
Daniel Wilson
Daniel Wilson
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It's a 2012 prostar international and the a/c compressor
It's a 2012 prostar international and the a/c compressor will not kick on? About 8 or 10 mo the ago we replaced the dryer, compressor, and two expansion valves? … read more
Mike Mcmillan
Mike Mcmillan
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In the there is hot air blowing from the vents but in the
in the bunk there is hot air blowing from the vents but in the cab it is cold air … read more
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1998 western star that has only heat in cab most of time. we
1998 western star that has only heat in cab most of time. we have replaced the complete ac/heat control module in cab and also the air over electric valve that is plumbed in heater lines outside of ca… read more
Mike Mcmillan
Mike Mcmillan
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Last night my AC stopped blowing cold. When for dinner and
Last night my AC stopped blowing cold. When for dinner and came back and in began to blow cold. Every once in a while it seems it turns off for a minute and then starts blowing cold.Is this an indicat… read more
Andy
Andy
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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
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Andy
truck /coach technician
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On my 2007 Kenworth T600, I have a/c problems. High side
On my 2007 Kenworth T600, I have a/c problems. High side reading is 250 psi- low side stays around 90-100 psi. Pulled a vacuum last night and recharged, cooled when the temps were around 75* but when … read more
FIX-IT
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A/c problem in 98 peterbilt 379 condenser, a/c compressor,
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A/c 07 International 8600 evaporator inlet temperature 45
a/c 07 International 8600 evaporator inlet temperature 45 outlet 120 superheat. Where should I look for a blockage or is it something else?… read more
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Have a 2007 Kenworth T600 with caterpillar engine. What is
Have a 2007 Kenworth T600 with caterpillar engine. What is the freon charge for this truck with sleeper--lbs/oz? Kenworth said 4 lbs even but pressures very high and lines hot. after venting off some … read more
Andy
Andy
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Vocational, Technical or Trade School
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I have a 2003 international 4400 DT530. The door actuator to
I have a 2003 international 4400 DT530. The door actuator to the defroster had broke on me and I had pulled it out to see whats up with it. Well the motor for the door actuator only turns one way. som… read more
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OK, we have a 2002 Columbia Frtlnr with a HVAC that will not
OK, we have a 2002 Columbia Frtlnr with a HVAC that will not cool for God or country. We have replaced the compressor, low side hose to the compressor from the J-block, xp. vlve, drier, evap. core, co… read more
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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
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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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