Fuel pump or electrical problems?
11-27-2011, 02:17 AM
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Fuel pump or electrical problems?
I've got an 89 firebird formula that has had a 350 swap. isn't completed yet, just thr injectors, the fuel pressure regulator, and a few little things to get it running reliably. only problem I'm having is that when I turn the car off after a period of driving (+40 min) the pump relay fuse by the battery blows. I'm not sure if its the pump or something electrically wrong with it. anybody have any ideas?
12-02-2011, 02:19 PM
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Car: 91 Camaro RS
Engine: 355 Vortec
Transmission: 700r4
Axle/Gears: 3.42
Re: Fuel pump or electrical problems?
Does it blow when you turn it off or when you try to restart it?
12-02-2011, 02:27 PM
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12-02-2011, 02:33 PM
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Car: 91 Camaro RS
Engine: 355 Vortec
Transmission: 700r4
Axle/Gears: 3.42
Re: Fuel pump or electrical problems?
If it blows when you turn it off, I really do not know what could cause that. Possibly a wiring issue.
If it blows when restarting, when the pump is warm, then I would suspect a pump issue.
If it blows when restarting, when the pump is warm, then I would suspect a pump issue.
12-02-2011, 02:37 PM
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Re: Fuel pump or electrical problems?
it quite possibly could be the pump. its been on there for 130k miles. a dirty fuel filter was suggested to me as well
12-03-2011, 10:01 PM
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Re: Fuel pump or electrical problems?
nope, its happening when I turn the car off. but now more frequently. ill replace the pump and see if it helps. I've gotta change it later on anyways
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