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a/c blowing hot

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Old Mar 10, 2006 | 04:51 PM
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From: Baton Rouge, LA
a/c blowing hot

my friends 98 F150 4.6L 4X4 is blowing hot with the a/c on. the compressor is only kicking on for about 2 seconds then it turns off for about 4 seconds and repeats. is this a bad compressor or is it only a bad sensor somewhere.

oh yea, it is not an auto a/c unit like the lariats.
thanks in advance
 
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Old Mar 10, 2006 | 06:32 PM
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probably low on freon. pump sucks the low side pressure too low, then the compressor cuts out. a couple gauges will narrow it down real quick. stop buy the shop.
 
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Old Mar 10, 2006 | 08:14 PM
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Compressor short-cycling is almost always due to low refrigerant level - no freon has been used in 12 years or so in new trucks.

Cans of R-134a cost about $8-10 at Wal-mart last time I looked. I'd throw one can in there and see what happens if yu don't have guages.

Steve
 
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