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12-16-2004, 12:11 AM
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#1 |
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Gimme a Drink!
Join Date: Dec 2002
Location: NYC
Posts: 694
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fuel pump stays on???
i installed a toggle switch to the fuel pump relay under my driver's seat for anti-theft. when i turn the toggle switch off, the fuel pump wont prime when the ignition is on. 2 times in a row today, after a drive i turned the ignition off and the fuel pump stayed on. the only way i shut it off was with my toggle switch. i drove it once after and the fuel pump shut off when the ignition was turned off as it should. my switch has worked flawlessly for about 5 months. is the switch my problem? or is this unrelated and common of stangs and pumps?
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1990 GT,stock T-5,K&N w/o air silencer,March underdrives,FMS wires,timing@14*,PA Perf 130amp alt,Steeda Tri-Ax Shifter,Steeda adj quadrant/clutch cable/firewall adj,Centerforce II clutch,o/r x-pipe,Magnaflow SS catback,g-load brace, subframes,Bilstein struts/shocks,Autometer gauges, 136k and running strong! |
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12-16-2004, 07:24 AM
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#2 |
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Registered Member
Join Date: Feb 2004
Location: Skiatook, Oklahoma
Posts: 193
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Re: fuel pump stays on???
Sounds like you have a fuel pump relay going bad or your wireing you added is messing you up. I bet its the relay though.Just my2 cents
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12-16-2004, 07:48 AM
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#3 |
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Rat Killer
Join Date: Aug 2002
Location: Cold ass Ohio
Posts: 1,143
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Re: fuel pump stays on???
Yeppers, I read the thread title and was thinking the same thing before I even got in here. Try that first. Toggle switches normally don't "go bad" unless you overload them, but relays do over time. It'd been working fine for 5 months, so that means you're wiring is correct.
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d-Con Racing "Nothing fancy, just 347 inches of RAT POISON!" MICE need not apply..... 
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12-16-2004, 10:05 AM
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#4 |
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Gimme a Drink!
Join Date: Dec 2002
Location: NYC
Posts: 694
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Re: fuel pump stays on???
well, the problem happened twice yesterday and since i have driven it about 5 times w/ no problems. its below freezing for the first time this year, could that be a factor? if the problem comes back i should replace the fuel pump relay? thanks
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1990 GT,stock T-5,K&N w/o air silencer,March underdrives,FMS wires,timing@14*,PA Perf 130amp alt,Steeda Tri-Ax Shifter,Steeda adj quadrant/clutch cable/firewall adj,Centerforce II clutch,o/r x-pipe,Magnaflow SS catback,g-load brace, subframes,Bilstein struts/shocks,Autometer gauges, 136k and running strong! |
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12-18-2004, 01:43 AM
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#5 |
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He said Member...heh, heh
Join Date: Sep 1999
Location: Jupiter, Florida U.S.A.
Posts: 3,718
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Re: fuel pump stays on???
The relay isn't very expensive and easy to replace, so it definitely wouldn't hurt replacing it just for troubleshooting purposes at least!
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Joe! 1988 GT, 13.58@101mph Check out my listing! Click here! Or my website:www.joe4speed.com |
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