Quite often loose wire connector and ground circuits causes intermittent problems so we should start with them first.
When circuits heats up due to poor conductivity, they would act up after some time of driving.
Other item to check would be the the Engine Coolant Sensor and its connector. When the ECT has poor conductivity, it can send false readings to the PCM and also the temperature gauge.
Dos the Check Engine Light indicates while driving and did you try to retrieve for teouble codes?
You can get a free scan done at Autozone to retrieve for trouble codes.
Wednesday, April 14th, 2010 AT 6:20 AM