SOURCE: Engine coolant temperature is lower than thermostat
This happens when the Engine Coolant Temperature (ECT) does not reach 75°C (167°F) despite sufficient engine warm-up time.
This happens usually when the thermostat/temperature sensor is faulty, and is bad for emissions and fuel consumption.
The
repair cost may vary, even if themperature sensor is not an expensive
part, after replacing the sensor there is need to reset the ECU (car
computer module).
SOURCE: 2004 pontiac grand am service engine soon light
I have the same car and if the gas cap is loos for any reason the service engine light will come on so check that. If it is it will turn off in a few days after you tighten it.
SOURCE: Grand Am 2003 "service engine soon" light
The service light means something is wrong with the car and it needs attention now. Get the codes checked and that will tell you what is wrong with it.
SOURCE: Grandprix 2003 code P1811 long shifting or hesitating when accelerating
Have a Code P1811 on my 2002 Pontiac Grand Prix. The only thing I have noticed is it gets warm very fast. Haven't noticed any slippage with the tranny...What do I do??
SOURCE: 2006 PONTIAC G6-TRANSMISSION JERKING
I have the exact car w/same exact problem. I was told that ist was the speed sensor, which just so happens to be located inside the transmission w/a $400. repair bill.
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