Thread: 85 chevy G20 heater defroster issue
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Old 07-08-2012, 11:42 AM   #1
greybeard23
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85 chevy G20 heater defroster issue
Can someone tell me if vacuum is used to switch from heat to defrost.
My 85 G 20 is stuck on defrost, can't get it to switch to heat.
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