View Full Version : heat problem

03-29-11, 01:01 PM
2001 catera- with the heat on, even on high, hot air will only blow when the rpms are up. At idle, at a stop light it blows cool air, then speed up and it gets hot. Any suggestions

03-29-11, 05:41 PM
I had the same issue which eventually lead to the heat not working at all. My final fix ended up being a coolant flush. I actually thought the heater core went out so I sent it to the dealer to replace it and they did a flush first just in case, and that fixed it. Just something to keep in mind. Some other folks may have some suggestions as well.

03-29-11, 06:23 PM
I have noticed others with same issue, i don't recall the fix. I do know in my 06 impala, friends 07 impala, and other friends 03 century there was the exact same issue, it ended up being blown head gasket each time... not sure with the catera though..