Question about 1999 Chevrolet K2500
This problem occured one morning. I had a code reader with me and connected, no error codes. Put a little gasoline in TBI and engine ran as long as someone squirted a bit in the intake, but not any further. Towed vehicle home, couple of days later all was well? engine started, and continued running. Can't trust this. I researched and found out there was an oil pressure switch which took over after initial start supplying fuel pump voltage. Pressure at fuel rail is approx 58 lbs with key on. Then I started engine, pulled fuel pump relay and engine fuel pressure died off and engine as well. Problem is, I can't locate this oil pressure/sender anywhere. It's supposed to have a three wire connector. Another problem, I can't really trust schematics for this model year suburban. Some indicate an oil pressure/sender, others only have an oil pressure sender, only source for fuel pump is from relay in fuse panel. I'm a bit confused and could use some help at this point since I don't want to get stuck in a remote location again.
The oil pressure sending unit should be located behind the distributor way in the back angled away from the engine, fuel filter been changed?
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Posted on Aug 10, 2008
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