Quote:
Originally Posted by hoffy015
This morning my 2002 blazer's heat quit working - the blowers still work fine, just no heat. And, the temperature gauge indicates that the temp level is only on the rise - it reaches points VERY VERY close to overheating...I turn the car off at that point. I have not checked the coolant level yet, but if it isn't the coolant, what could it possibly be?? I replaced the intake manifold this time last year because of a very similar problem. Any help would be much appreciated!!
Thanks in advance!
steph
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You need to check the coolant first. Make sure the Radiator is full to the top and see if this helps. Temperatures reaching that high means one of three things. No Coolant, Plugged Radiator, or a water pump that is not pumping. If adding coolant doesn't help, You might want to flush the system, especially the Heater core.