Question about 2004 GMC Sierra
Ran over a truck tire on the highway.No damage underneath.
Fuses good. Relays good. Fuel pump has great pressure but no power to pump. No engine code. Is there a fuel accident cut off switch?
Its a 2004 GMC Box truck. Ex penske rental.I think its on a Savana van frame. V8
There is no Inercia Switch to reset Like Ford
Have you Double Checked All Underbody wiring for fuel pump ,OPEN In Pink/blk tracer fuel power lead,also
Oil Sending unit on most GM Vehicles have the ability to turn OFF GROUND to Fuel Pump Relay as a Proyection Against LOW OIL Pressure in engine.
Fuel Cutoff Mode
The PCM cuts OFF fuel from the fuel injectors when the following conditions are met in order to protect the powertrain from damage and improve driveability:
Posted on Jan 26, 2009
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Posted on Jan 02, 2017
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