Electric Fuel Pump Module For Chevrolet Astro GMC Safari 4.3L 2000-2004 2005

Causes of fuel pump failure

Fuel pumps typically operate for seven to ten years before failure. Premature failures are most commonly caused by one of the following reasons:

Excessive Hot/Cold Environments

Contaminated fuel

Excessively running a vehicle on a near empty tank which prevents the pump from being fully submerged causing it to overheat

Prior to Replacing Pump, check:

Fuel Pump Fuse(s)

Fuel Pump Relay

Voltage at the Pump - test for bad wiring

Voltage drop test - corroded connector, bad wiring

Fuel System Pressure - test for pump pressure being outside accepted rang

Installation Guide:

Make Sure it Fits!

1. Check related fuel system components such as fuel filter, relays, vehicle wiring and connectors chassis grounds, fuel pressure regulator and fuel itself.

2. Relieve System Fuel Pressure

3. Disconnect the Battery

4. Disconnect negative battery cable to reduce possibility of sparks or engine staring.

5. Empty Fuel the Battery

6. Drain fuel into approved containers and dispose of per local codes or regulation.

7. Remove Fuel Tank form Vehice

8. Remove Old Fuel Pump

9. Clean inside of Fuel Pump

10. Inspect/Replace Vehice Wiring/Hoses as Needed

11. Install New Fuel Pump and Strainer

12. Install New Tank Seak (if applicable)

13. Re-install Fuel Tank

14. Replace Fuel Tank

15. Fill GAS Tank with Clean Fuel

-Clean fuel is critical to ensure proper fuel pump operation

-Start Enging and Check for Leaks or Problems

-Reconnect battery cable key may need to be cycled on and off several time to build proper fuel system pressure.