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Truck Repair/bunk ac blowing hot.


Recently my bunk ac starting blowing hot. I cleaned the filter that protects the blower. I blew the vents out but its still running hot. Is there a filter in the box that feed the vents. If so how is it accessed.

Is the cab a/c blowing hot too. If it's not then there could be two things going on you could remove the top of the box and blow the heater core and evaporator fins out that's preventing air flow. number 2 is there is a expansion valve where the bunk lines go into the cab that could be plugged up. If that is plugged you will need to recover the system and replace the expansion valve also replace the drier and recharge the system.  

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Jeff Drumm


I Can answer any question pertaining to semi trucks and trailers. Have no experience in the automotive field so not able to help in that area.


My experiences in Semi Trucks is. I own my own truck and i presntly maintain a 80 truck fleet. Can handle any questions pertaining to a truck have tore apart and rebuilt every aspect on them. Fleet I deal with is Mainly Volvo trucks and a handful of freightliners. Work on automated transmissions on a daily basis along with carrier apu's. With engines my specialty is the 60 series Detroit but do work on the cummins isx the n-14 and the ism. and also the Volvo engines.

Have a College Degree from university of northwestern ohio in diesel and agriculture mechanics. Have 10 years behind the wheel driving a truck and 4 years working on trucks full time. Also have grown up on a farm so have been tinkering on trucks and tractors all my life.

Awards and Honors
I've gone through online schooling and have received certificates from webb wheel, Timken and Volvo academy.

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