fule pump noise
Thread Starter
Junior Member
Joined: May 2001
Posts: 64
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From: winnipeg,mb,canada
fule pump noise
The other day i had just come home and I noticed a hum coming from the back of the car.The car was turned off and it still made this noise.I'm shure it was coming from the back near the gas tank. Could it be the pump not shuting off.I think i also have a leaking injector??
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88 Camaro IROC-Z
350TPI
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88 Camaro IROC-Z
350TPI
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Joined: Jan 2000
Posts: 19,653
Likes: 309
GSS,
Yes, the pump is still running. If ti continues to run for up to five seconds after shut down, that can be completely normal. The auxilliary oil pressure switch provides power to the fuel pump, so if there is still more than 4-7 PSIG of oil pressure in teh galleries when the engine shuts off, the pump will continue to run until the pressure bleeds off.
Mine has done that for years.
If the pump continues to run significantly longer, you may have a failing oil pressure switch or sticking fuel pump relay.
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Later,
Vader
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"Let the bodies hit the floor!"
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Yes, the pump is still running. If ti continues to run for up to five seconds after shut down, that can be completely normal. The auxilliary oil pressure switch provides power to the fuel pump, so if there is still more than 4-7 PSIG of oil pressure in teh galleries when the engine shuts off, the pump will continue to run until the pressure bleeds off.
Mine has done that for years.
If the pump continues to run significantly longer, you may have a failing oil pressure switch or sticking fuel pump relay.
------------------
Later,
Vader
------------------
"Let the bodies hit the floor!"
Adobe Acrobat Reader
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