Because thats all I have. Maybe thats why my car wont start. How hard is it to pull the tank to do a pump?

I'm not sure, for the l4, it may be enough. For the mpfi, thats a definite no!

I've got to drop a tank tomorrow in freezing rain...woohoo

here's some links
https://www.fiero.nl/forum/Forum2/HTML/030087.html
http://www.mtsu.edu/~mkr2c/fuelpump.htm

thank lurker for the 2nd site,

~15psi for the 2.5 & ~40psi for the 2.8.

Anything within 3-4 psi of those numbers is fine.

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1988GT T-Tops, 5spd, Loaded

Are you sure it's the pump? Maybe your fuel filter's clogged?? Thats a long shot but ya never know.

[This message has been edited by blazin' (edited 12-12-2002).]

Try the cheapest first, and try the fuel filter. Then go from there.

First step - Buy a manual. Page 132 of Haynes manual tells all about fuel pressure problems. You should have 9-13 psi. If you disconnect line to TBI and deadhead pump into a pressure gauge and get a low reading it is not your fuel filter. Could be the pump but a couple of other things also.

Could be the rubber hose inside the tank between the pump and line....but might as well change the pump if you're already there

A couple more thoughts on the car not starting.

Have someone crank it while you watch fuel injector nozzle in throttle body. You should be able to see a spray coming out of it. The car while typically start even with a partially fouled injector nozzle that creates more droplets than spray. I'd think 8 psi would be enough to get gas flow even if it isn't a perfect spray.

If you don't get gas flow go to your local autoparts store and buy the test bulb (a few $'s) that plugs into the injector wires (you remove the two wire socket from the top of the injector nozzle and it plugs right to test bulb. The crank the car and see if the test bulb flicker on and off. If it doesn't the fuel injector is not getting a signal from the ECM to open/close. This is a whole new can of worms but with a good manual can be traced down as well.

If you are getting electrical signal, have fuel pressure and are not getting fuel from the injector it can be the injector itself. My '84 sat for a long time and the injector varnished up, wouldn't flow fuel and had to be replaced. But you want to be sure of this because it's a $75 part when new.

hehe thought id be a pain for a sec. the topic was. is 8psi enoguh fuel pressure....an sure it is...for an old carbed V8 my Buick 455 had a factory fuel pressure of 7.5psi!!!

That was bascially a rhetorical question.

I know 8 pounds is not enough. Funny though how some assume it is a 4 cyl and some assume its a 6. Stupid me didnt say what it was. Because I assume you all know its a 6

Yep definetaly not near enough for the 6.

Try replacing the filter first, after that when you check the pressure, pinch the rubber part of the return line momentarily, if the pump is good it should jump up near 80 PSI.

If not it is either the pump, or the rubber line between the pump and sending unit has a hole. Hafta drop the tank.

If does jump up near 80 psi when you do this, the fuel pressure regulator is bad.

It helps to have the pump running, either by jumping the terminals in the aldl connector, or at the fuel pump relay.

[This message has been edited by jelly2m8 (edited 12-17-2002).]