engine overheats and heater blows cool air
1999 jetta engine overheats. Thermostat & cooling fan control box replaced, but coolig fan not coming on. Also the a/c clutch not coming on & the heater blows cool air. Are overheat & heater related?
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If your cooling fan does not come on at all, disconnect the wiring harness and feed the power directly to the fan. this will bypass your temperature sensor. make sure that the fan is working. If your heater continues to blow cool air, even when your gauges are reading hot, check your thermostat again as well as your water pump.
da oldturkey03