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Old 10-28-2005, 09:10 PM
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electric fuel pump stopped working

bought a 74 gto last week 1972 rebuilt 455ci. strong engine. Has an on off switch for the fuel pump. It was working all week and all day today, then flipped the switch and nothing. Can you give me the basics of what to check. (And can you explain it as if you were talking to a 10 year old) I know nothing about cars.

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Old 10-28-2005, 10:05 PM
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You got a leaky spark tube...
 
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Check to see if there is a fuse somewhere, maybe you have a blown fuse. If theres a blown fuse you need to find out what caused the fuse to blow. Trace the wiring to and from the pump. Check to make sure all connections are tight. If the wiring appears to be in good condition, try looking for a relay. If there is a relay, check to be sure the relay is working properly. If all that seems good, check the switch. You need to make sure every component in the circuit is capable of handling the rated amp draw of the fuel pump.

If you have access to a multimeter that can measure ohms (resistance) that will make your troubleshooting much easier. You will be able to check for continuity in the circuit.

If you still get nothing you're gonna need to be sure the motor for the pump itself isnt burned up.

By the way, it would be better to place this kind of question in the electrical forum next time. You'll probably get better results.

Last edited by Blazin72; 10-28-2005 at 10:10 PM.
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Old 10-28-2005, 11:36 PM
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thanks!

thought i was in electrical... i'll get this site down in a couple of days.. thanks for your help!
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Old 10-28-2005, 11:44 PM
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You got a leaky spark tube...
 
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A moderator can move it for you.
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Old 10-29-2005, 12:02 PM
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still no luck

did a test light on the fuel pump switch. did not show power. I traced wiring and fuses looked good. tring to find a relay under hood. Can you tell me how to check it?
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Old 10-29-2005, 06:14 PM
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thanks blazin72

the fuse was located to a direct line near the battery. Replaced it and I'm back in Business!!
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