Q: Car turns over but won't start

asked by on October 03, 2016

Hummer would turn over but not start, so we replaced the fuel relay because it lacked fuel pressure to the motor. Car cranked and ran perfect, a week later the car failed to start, we replaced the fuel pump, car ran perfect for a few days. Parked the car and went to start it back, the engine will turn over but car fails to start.

My car has 148000 miles.
My car has an automatic transmission.

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