service four wheel drive light lit up on dash but not all the time when lit up four wheel drive will...
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service four wheel drive light lit up on dash but not all the time when lit up four wheel drive will not work.
vents blowing constant cold air...told it was the blend door on my 1999 GMC Jimmy ....replaced...
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vents blowing constant cold air...told it was the blend door on my 1999 GMC Jimmy ....replaced thermostat.....flushed system and replaced cracked radiator....heater coil is not leaking. A/C is a seperate unit, has its own switch and indicator light...that is not on.. I have NO heat...Freezing here in Michigan....HELP!!! Jay