fuel pressure?

Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's, Olds 98 91-96, Buick Lesabres and Park Avenue 91-96. Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.
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Adam Marcum
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fuel pressure?

Post by Adam Marcum »

ok first off i dont have a scaner. the ssei is cutting out anything over half throtle. and will not go when gas is pushed. what i have checked. tps, and fuel pressure.the fuel pressure is as follows.
1.key on and off 3 times for two secondes to prime.36,lb
2.ideling. 32,lb
3.ideling with .FPR. vaccum off 40,lb

any help will be good . thanks
1999 regal gs
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Wes
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Re: fuel pressure?

Post by Wes »

fp is too low. spec is 41-47 for the prime. thats the sign of a weak pump or a line restriction. check for kinks or leaks, and change the filter if you havent already. then check the fp pressure again.
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Re: fuel pressure?

Post by Jrs3800 »

I do agree... The Pressure is Low...

My Old Bonneville specs out lower than the 95 SSEi and I am producing more pressure than you currently are...
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willwren
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Re: fuel pressure?

Post by willwren »

Your FPR is working properly.

Either your fuel pump is bad, your filter clogged, or you have a strainer sock (on the pump) filled with debris. If a filter change doesn't improve it, replace the pump and sock (they come together). You'll need to purchase a tank seal seperately.
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Adam Marcum
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Re: fuel pressure?

Post by Adam Marcum »

put new filter on and the car will go now. but pressure is still low .
1.38 .lb. prime
2.34 .lb.run
3.42.lb.fpr unpluged
1999 regal gs
Adam Marcum
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Joined: Thu May 22, 2008 8:13 am
Year and Trim: 1999 regal gs
Location: muscle shoals, alabama

Re: fuel pressure?

Post by Adam Marcum »

put new filter on and the car will go now. but pressure is still low .
1.38 .lb. prime
2.34 .lb.run
3.42.lb.fpr unpluged
1999 regal gs
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Wes
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Re: fuel pressure?

Post by Wes »

what is the scale there? and thats in psi?
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Re: fuel pressure?

Post by willwren »

That is PSi, and your're still low, but it helped.

You need to drop the tank and change the pump.
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Click here for mod list for both cars
93 SSEi, 95 SLE (supercharged) 97 Buick LeSabre Limited
PontiacDad at WCBF '04: Cruise control? That's like surrendering!
Comprehensive guide to troubleshooting, rebuilding, and modifying Eaton Superchargers
Adam Marcum
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Re: fuel pressure?

Post by Adam Marcum »

will do sir. car runs fine tell you run it for about 45 minutes then same problems as before.checked fuel pressure when it was doing it and with car running. it was 30.lb so i think it is toast.?
what fuel pump should i get money is tight right now. lol
i can spend 200.dollers on it.and thanks for the info...

off topic but sorry for the double post .dont no how it happen.
if you can please fix it. i dont no how.
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Re: fuel pressure?

Post by harofreak00 »

Any auto parts store pump will be fine, looks like Autozone has it for $215
http://www.autozone.com/R,APP169968/veh ... Detail.htm

If you have time to wait for one to be shipped, RockAuto.com has several options available from $109-137.

Also, if you are in a pinch, a used pump from a junk yard will do the job just fine...
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Adam Marcum
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Re: fuel pressure?

Post by Adam Marcum »

ok i got a acdelco pump from orileys and sock for $144.56
thanks
1999 regal gs
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