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Chevy s10: Fuel pressure..45 when key in the on position

Customer Question

Chevy s10, 2000 4.3 L. Fuel pressure at 45 when key in the on position. Then increases to 51 when running, what dose this mean?
Submitted: 5 years ago.
Category: Chevy
Expert:  Chevy expert replied 5 years ago.
Welcome to just I'm here to help you and your 100% satisfaction is my goal.this fuel presure is too low we need repace the pump and possibly the injectors Check fuel pressure when cranking, should have 60-63 PSI.

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