Why doesn't my air compressor cycle on and off instead of staying on always?
What is your question?
Truck blows cold air but compressor does not cycle and eventually Cold air slows down from vents almost like system is freezeing up because of compressor not cycling on and off . cause the blower motor continues to run but just will not produce any air until you turn AC off at dash and let blower flush all the frozen slush and then it starts to blow air again and then you can turn on air conditioner switch to get cold air what could it be ?
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suspect pressure switch on the accumulator is most likely bad,causing the evaporator core to ice over,causes compressor to run constantly.get switch checked ASAP,and don't run the a/c untill it's fixed.can/will cause a/c system damage.commmon problem on your truck.
didn't say to replace the compressor.i said have the switch checked and/or replace it before damage is done.the evaporator core is in the heater box with the heater core.it looks like a little small radiator,that's what is freezing up.you don't want that to go bad,because the whole dash and steering column has to come out to get to it.
Thanks for the feed back i'd hate to have to replace new compressor again I just spent a lot of money about a year ago.
didn't say to replace the compressor.i said have the switch checked and/or replace it before damage is done.the evaporator core is in the heater box with the heater core.it looks like a little small radiator,that's what is freezing up.you don't want that to go bad,because the whole dash and steering column has to come out to get to it.