I have a 2002 Buick Rendezvous and I recently replaced the thermostat. It will blow only cold air, after the car has been on for 30 mins or longer the air might get warm but not hot.. Any suggestions, please?

Asked by Nov 15, 2014 at 06:45 PM about the 2002 Buick Rendezvous CX FWD

Question type: Maintenance & Repair

2002 Buick Rendezvous CX, Having heating issues.

4 Answers

21,700

Check your anti-freeze level. If its low fill it to proper levels in both the radiator and overflow bucket, then look for a leak. If its not low it could be either a bad thermostat or the blend door motor is broken or bad.

1 of 1 people found this helpful.
140

I'm having problems too. My car just started overheating. My heat was blowing cold and the temperature went in the red. I put antifreeze in the car and it did the same thing. I looked under the car for a leak and didn't see anything dripping. Any idea what may be wrong?

14 of 14 people found this helpful.
21,700

If you can't find an external leak and you had to add that much anti-freeze sounds like it could be a blown intake or head gasket (s). Pull the oil dipstick while the engine is cold. If its over full and/or foamy there's where the anti- freeze went.

2 of 2 people found this helpful.
50

blocked heater core

5 of 5 people found this helpful.

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