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#1
11-11-2005, 03:44 PM
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fuel pump wont stop!
alright, you know when you first turn the key to the "on" position, you hear the fuel pump going for about 2-3 seconds and then stops. BUT, when I turn the key, the fuel pump doesnt stop.. it keeps going and going and now it takes about 3-5 cranks to start up the engine when before it would fire up on the frist crank.
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 1990 IROC-Z 5.7 TPI (1 out of 4,213 IROC's made in 1990) Only mod is magnaflow 3" cat back and K&N filters... im broke. 
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#2
11-11-2005, 03:56 PM
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Re: fuel pump wont stop!
you're fucked. haha
no really, maybe try replacing the relay and then see if it still does it. if the problem is the actual pump you might have to drop the tank again...didn't you just replace it? i know i did....lotsa fun.
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 -2000 LS1 Z28-1979 Berlinetta*sold*-1992 RS 25th Anniv. 350*sold*-
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#3
11-11-2005, 04:40 PM
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Re: fuel pump wont stop!
My guess would be that the pump isn't able to build up pressure to prime the system. Not sure what exactly the reason could be. I just had to drop the tank on my winter beater for the same thing and found out that one of the fuel lines close to the pump was leaking so I had to replace the whole damn pump.
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1994 3.4L Chevrolet Camaro - No more 2006 Hyundai Sonata
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#4
11-11-2005, 04:44 PM
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Re: fuel pump wont stop!
yeah man i just replaced it.. it was a pain = ( it has a brand new pump in it..
__________________
1990 IROC-Z 5.7 TPI (1 out of 4,213 IROC's made in 1990) Only mod is magnaflow 3" cat back and K&N filters... im broke.
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#5
11-11-2005, 06:01 PM
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Re: Re: fuel pump wont stop!
Quote:
 Well I also think its the relay.. doesnt cost much either.
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#6
11-11-2005, 06:30 PM
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Re: fuel pump wont stop!
Yeah, relay sounds right. But does your oil pressure gauge work right? The fuel pump runs as soon as it sees oil pressure. If you loose oil pressure, the car will die.... comforting......
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#7
11-12-2005, 10:43 AM
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Re: Re: fuel pump wont stop!
Quote:
yuuup.. my oil pressure gauge works fine. The fuel pump relay is on the passenger or drivers side in the engine bay?
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1990 IROC-Z 5.7 TPI (1 out of 4,213 IROC's made in 1990) Only mod is magnaflow 3" cat back and K&N filters... im broke.
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#10
11-14-2005, 02:04 PM
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Re: fuel pump wont stop!
ive been slacking off lately and ive been driving my daily driver (POS corolla). I got a new TPS and a new IAC but have yet to install them. My check engine light came on today when I turned my car on.. ill pull the code. Havent checked the fuel pump relay yet. i dont have time =(
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1990 IROC-Z 5.7 TPI (1 out of 4,213 IROC's made in 1990) Only mod is magnaflow 3" cat back and K&N filters... im broke.
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#12
11-15-2005, 01:47 AM
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Re: fuel pump wont stop!
speed density
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1990 IROC-Z 5.7 TPI (1 out of 4,213 IROC's made in 1990) Only mod is magnaflow 3" cat back and K&N filters... im broke.
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#13
11-15-2005, 04:14 PM
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Re: fuel pump wont stop!
That car hates you
__________________
ASE Master Certified before the age of 20 Current Cars: 2001 Chevy Silverado 1500 Z71 5.3L 1996 Acura Integra LS B18 1.8L Past Cars: 1990 Buick Estate Wagon 5.0L 1987 Chevy S10 2.5L Tec Four 1995 Pontiac Grand Am 2.3 Quad 4 1996 Jeep Grand Cherokee Limited 5.2L AWD 1991 Ford Tempo L 2.3L 1992 Buick LeSabre 3.8L 1997 Buick Century 3.1L 1996 Lumina APV GT 3.4L 2006 Ford Escape 3.0L XLT
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#14
11-15-2005, 04:31 PM
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Re: fuel pump wont stop!
i highly doubt the bad relay... if that was bad it wouldn't turn on. uness for some odd reason it's not sending the right amount of voltage... but this is probably not likely. just like CamarosRsweet said, the pump continues to run until it has built up sufficient pressure, the fact that it is taking longer means there is a pressure leak somewhere or the pump is defective. lack of pressure is why your car takes longer to start.
is gas cap installed correctly and holding pressure? leaking fuel anywhere? reset computer. exchange fuel pump (I know... it sucks)
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 90 Camaro RS V6 - swapped to V8 -350 block, GM Vortec L31 Heads, Edelbrock Performer RPM Vortec intake, 750cfm carb, CompCams XE268 Camshaft ESTIMATED 360-420 hp 380-430lb/ft torque 
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