Engine hot A/C off light turned on

I just wanted to thank Roco for his follow-up.

We have a 2006 Pontiac Torrent. About three months ago, it began overheating at stop lights and in traffic. The heat would blow cold air and the temperature gauge would rise. After parking, the engine fan would remain on for a while, until the engine had cooled down.

The initial diagnosis was the thermostat. After that was replaced, it worked fine until yesterday. We were driving and the temperature gauge begin to rise again, and after pulling over we could smell burning coolant. The fan remained on, and slowly the coolant compartment began to drain.

I googled the symptoms and found this page, which seemed to be right-on. We took the vehicle in today and the mechanic independently identified it as a broken head gasket. Whether it failed because of the thermostat failure earlier, or it was always the head gasket, we're not sure.

He quoted us $1,100.00 to repair it.

Wow! I have the same story as above, I Googled it and found this site and I do not want to go through with the payments of the thermostat first then the fans and the wiring kits. But I will let you know my follow up. I have a Pontiac Torrent 2006 with 118,560 and I am having these problems and that quote gives me a good idea of what to bargain for. I want to say thanks and I will let you know how well it will go for me too.

I also have a 2006 Pontiac Torrent and replace the head gasket and 53,000 miles had all the same symptoms it was a bad head gasket and now I have got a hundred and twelve thousand and the same thing happened. I guess I should have changed to head bolts.

The car begans to overheat when idling and the air conditioner is on. Only one fan comes on but when I began to move the gauge goes back to below normal where it usually is. What could be causing this to happen? There is plenty of antifreeze in the car. Are both fans supposed be coming on when the car is started or at what point does both fans come on?

3.4 headgaskets are my hobby. Done 4 jobs. Just Got 07 torrent for my next project. BUT. Dash says overheat. Temp gauge is cold. Also tach reads 4K with motor off. Have dash warnings for abs, tcs stabilitrak, and tpms. Ect is 2200 ohms at 75f. I get 5vdc at sensor. Motor temp feels right using my expert heat sensing hand. Head gasket does not bother me. But why do I get overheat warning at first start? I checked codes. None.
Coolant level is fine. Zero overspray in engine compartment.
Bad cluster?

Had code p0118 ect and p0128. Cleared codes and all is well. Drove home and A/C shutoff again. Took out thermostat. It was stuck open. Replaced. It. Cleared codes and it has been behaving okay for 2 days now. A/C works. Gauge works. Went to drive thru. Temperature went up, fans came on. Temperature went down. But the 0118 concerns me.

So, if I change sensor, which tests good now, and problem comes back, then you will say try something else?