Page 1 of 1
fuel pressure?
Posted: Sat Jul 12, 2008 11:45 am
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
Re: fuel pressure?
Posted: Sat Jul 12, 2008 11:55 am
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.
Re: fuel pressure?
Posted: Sat Jul 12, 2008 5:05 pm
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...
Re: fuel pressure?
Posted: Sun Jul 13, 2008 2:27 am
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.
Re: fuel pressure?
Posted: Sun Jul 13, 2008 9:08 pm
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
Re: fuel pressure?
Posted: Sun Jul 13, 2008 9:22 pm
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
Re: fuel pressure?
Posted: Sun Jul 13, 2008 9:34 pm
by Wes
what is the scale there? and thats in psi?
Re: fuel pressure?
Posted: Sun Jul 13, 2008 11:47 pm
by willwren
That is PSi, and your're still low, but it helped.
You need to drop the tank and change the pump.
Re: fuel pressure?
Posted: Mon Jul 14, 2008 7:07 pm
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.
Re: fuel pressure?
Posted: Tue Jul 15, 2008 7:01 am
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...
Re: fuel pressure?
Posted: Fri Jul 18, 2008 2:46 pm
by Adam Marcum
ok i got a acdelco pump from orileys and sock for $144.56
thanks