Here is a list of what has been done and in the order that it was done.
- Fan blower motor was replaced, and the fan works fine, comes on when it is supposed to.
- Thermostat replaced.
- Complete coolant system flushed out.
- Head gasket replaced (apparently there was a small leak), and head was sent for pressure test by GM, and it came back fine.
- Radiator replaced. New cap on the coolant reservoir.
Also the water pump was checked and it is working fine.
None of these has fixed the overheating problem, and I don't know what else it can be. The temp is fine at highway speeds (about 1/4), but as soon as I get off the highway the temp goes above 1/2 and it is evident that it will go into the red if I don't cool it off right away. So I stop and open the radiator and let the steam out and also coolant comes out as well, but I do it very carefully using a towel. The fan stays on, and after about 5-10 minutes the fan turns off, and the temp is back down to 1/4. I am so frustrated because it is costing alot of money for the garage to do all this, and it's still no better than when I first took it in over a week ago. If anyone has any suggestions at all, or has experienced similar problems, I would really appreciate any advice or comments. To those in the pontiac group that have allready offered advice previously, I thank you, and I have tried everything that has been suggested thus far.
Regards, KDawg