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Question
BruceK
When my truck sets for longer than four hours it is very hard to start, acts like it has run out of fuel. It has been getting progressively worse.
Fuel pressure: 30-34 PSI, fluctuates at idle.
When shut down pressure goes to 35-37 PSI after about five minutes, suspect heat from engine is causing this rise in pressure.
Pressure keeps dropping until it gets to zero in about three hours.
According to the manual the pressure is low should be about 60 psi. Is the pump defective or is the pressure regulator the source of this issue? I pulled the vacuum line off of the regulator and there was no fuel in the line.
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