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I have a 98 blazer that in the morning blows ice cold air. After driving for awhile it will stop blowing cold and if you turn it off wait and turn ot back on it sometimes blows cold again. ANy ideas
Re: I have a 98 blazer that in the morning blows ice cold...
I would replace the low pressure AC compressor cycling switch, it may be sticking, it is a fairly common problem. The switch is located in the low side of the AC system hoses or accumulator.
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www.automotiveforums.com > ... > Chevrolet > Blazer A/C now turns on but will blow cold air for 5 seconds then back to hot for the same. ...It seems be be left of the heater box somewhere but it is definately inside. .... on this '98... the things just keeps turning in there, hot, cold, hot and so forth.
Wondering if the freon level is wrong,too much will ice the system up and shut off,too little will cycle the compressor on and off all the time,if you can't hear the compressor turning on and off alot I would think the system ices up,let some out.
BEFORE YOU DO ANY HARD WORK TURN ON YOUR A/C AND BLOWER AND TAP THE BACK OF THE BLOWER MOTOR WITH A SMALL HAMMER IN A COMPLETE CIRCLE. SOUNDS LIKE YOU JUST HAVE SOME STICKING BRUSHES IN THE BLOWER MOTOR. [email protected]
if youre driving down the road with decent heat and all of a sudden it gets cooler, and the engine temperature remains normal, i would strongly suggest flushing out the heater core at the firewall in engine compartment, very common problem due to the dex-cool antefreeze used be GM.
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