My 20001 Cadallac Catera heater never get hot enough to keep you warm. Anyone know what to do too correct the problem?
Change the thermostat,sound,s like it may be stuck open,and before you do this,make sure actuator on the blend door,is opening correctly,and letting all the heat in.
Blend door actuator,may be stuck or bad,not turning over to heat all the way,check this before replacing thermostat.
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