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Dave Nova
Dave Nova, Chevrolet Technician
Category: Chevy
Satisfied Customers: 19450
Experience:  ASE Master Certification. GM World Class Certification
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1994 chevy s10 blazer 4.3 vortec Fuel pump replaced ,relay ...

Customer Question

1994 chevy s10 blazer 4.3 vortec Fuel pump replaced ,relay is working,could it be the oil preasure sending unit? Perry
Submitted: 8 years ago.
Category: Chevy
Expert:  Dave Nova replied 8 years ago.
What is your fuel pressure reading with a fuel pressure gauge?
Customer: replied 8 years ago.
There is no presure, pump not running now
Customer: replied 8 years ago.
Checked old pump and it did run outside of car
Expert:  Dave Nova replied 8 years ago.

Check all the connectors at the fuel tank and at the fuel pump itself. These go bad sometimes. Check for power at the fuel tank connector with a test light. Should have power at the gray wire for 2 seconds when key is turned on. If you have power and the pump will not run, replace the pump.