Medium and Heavy Trucks

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Related Medium and Heavy Trucks Questions
Ac clutch is on and off constantly. 2007 peterbilt 379 c-15
I replaced accumulator and both high pressure and low pressure switches … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
203 satisfied customers
I own a 2016 Entegra Cornerstone 45ft motor home equipped
I own a 2016 Entegra Cornerstone 45ft motor home equipped with a 605 Cummings diesel engine with side radiator. 2 weeks after buying it the dashair rear compressor froze and Cummings replaced it and w… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
I am working on an a/c in a peterbilt. The low pressure is
I am working on an a/c in a peterbilt. The low pressure is getting to 85 then the fan kicks me n and drops it to 67 then fan kicks out and pressure rises again. I've installed new compressor accumulat… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
3,400 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
203 satisfied customers
I've been working the a/c of a 2000 Peterbit 379. The
Hello. I've been working the a/c of a 2000 Peterbit 379. The compressor was scattered (metal shavings in lines) and the orifice tube was plugged with some unidentified gray clay looking substance. And… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
3,400 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
3,632 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
Roy
Roy
shop foreman
Associate Degree
5,256 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
33,485 satisfied customers
I've been working on international 2006 with AC code
Hello I've been working on international 2006 with AC code 1 8 613-14A past tech told me to replave blenders I cleared the codes and replaced blender and Ac worked fine and now both trucks are back in… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
203 satisfied customers
2005 pete 387 ac blowing hot had a tech at TA truck stop
2005 pete 387 ac blowing hot had a tech at TA truck stop check it pumped the system down held a -30 for 30 min. charged it with 4 lb 134a tech said that was all it takes but it still blows hot air he … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
WHEN MY AIR COMPRESSOR GOES ON MY ENGINE FAN STOPS SPINNING, RESULT IS WEN COMPRESSOR GETS
WHEN MY AIR COMPRESSOR GOES ON MY ENGINE FAN STOPS SPINNING, RESULT IS WEN COMPRESSOR GETS HOT AND FAN DOES NOT COME ON, NO MORE COOL AIR IN THE CAB. Any ideas? My truck is an 2006 International 9900,… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
203 satisfied customers
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
truck /coach technician
Vocational, Technical or Trade School
203 satisfied customers
2000 peterbilt 379 n14. I went in the truckstop ac was blowing
2000 peterbilt 379 n14. I went in the truckstop ac was blowing cold but my engine temp was high like my truck was running hot when I got back. I cut my engine fan on to cool the engine down but now I … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,672 satisfied customers
put a/c compressor & drier on 379 peterbilt pumped system down
put a/c compressor & drier on 379 peterbilt pumped system down added a oil charge and then started adding freon. compressor would cut on &off.now it won't come on at all.is there a switch in the sleep… read more
spankyjr1
spankyjr1
Journeyman
Vocational, Technical or Trade Scho
2,872 satisfied customers
2004 International 4300The compressor, accumulator, orifice
2004 International 4300 The compressor, accumulator, orifice tube, Schrader valve core and a suction hose were replaced. System was charged to 30 ounces and was functioning within specs. The next morn… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,672 satisfied customers
I want to service air-condition on a volvo tractor not sure
I want to service air-condition on a volvo tractor not sure model, believe its a Detroit diesel engine. Want to know the steps to diagnose the system. And what the psi should be, how much to charge it… read more
spankyjr1
spankyjr1
Journeyman
Vocational, Technical or Trade Scho
2,872 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
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Daniel Wilson

Daniel Wilson

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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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