Hello friends. Was hoping someone could please help me with this problem. I own a 2007 Grand Prix GXP which is fairly rare as it has a 5.3 liter engine in it that is almost like driving a rocket. I keep having problems with my coolant sensor which disables the a/c if it is not working properly. In Florida that is a horrible thing even this time of year when it sometimes is in the 80s in January. I have replaced it a couple of times in the last few months and have also replaced the connector. I don't see any problems with the wires down to where they go into the harness. Could it be that the after market sensors are confusing the computer or may have issues? I will watch the temp. gauge and it never does seem to be accurate. The other day I disconnected the pos. + of the battery then checked the wiring the best I could, disconnected and connected the sensor plug then everything was fine. Drove the car 2 different days for about 80 miles without a problem. Today of course my wife takes the car, goes into town and there's the warning coming on again about the a/c being disabled with the car thinking it's running hot. Fans are blasting full speed because it's trying to cool down a motor that isn't hot. Hope someone knows what might be going on. I was going to go to the dealership and pay triple what the parts stores charge for a new sensor and see what happens but would rather try anything else first. Thanks for any help someone can give me. Appreciate it very much.
Help with 2007 GP GXP Coolant Temp. Sensor Works but Keeps Failing. Please help.
- Thread starter stotzbotz
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