no start no fuel pressure fuel pump fuse ok how do i check fuel pump relay

Asked by Feb 08, 2010 at 04:47 PM about the 2003 Saturn L300

Question type: Maintenance & Repair

i checked fuel pressure it had none. checked pump fuse ok. how do i check fuel pump relay? want to check before
sending to shop for fuel pump replacement. also check error codes and there were none.

4 Answers

11,245

With out getting technical - You can usually hear it. Radio off Windows up turn the key to the on position you should hear the relay click on for 3 seconds and shut off.( supposed to hear the pump too ) If you hear the click and no buzz the pumps dead - If you hear no click the relay is not working or has no power. Good Luck

3 out of 3 people think this is helpful.
60

The relays are in a box in the engine compartment by the battery. The horn relay and fuel pump relay are the exact same type, so if you're horn works fine, switch them and see if anything changes with the fuel pump.

6 out of 6 people think this is helpful.
20

On Mine it's the wiper relay that's the same Does anyone know what the pressure is supposed to be at the fuel rail check valve?

2 out of 2 people think this is helpful.
30

Just did mine and at the fuel rail engine running it was 52 pounds ==== turning over was about 35 by the time i got to view the gauge it doesnt have a hold feature :(

3 out of 3 people think this is helpful.

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