1997 Z, been sitting for a WHILE... ran fine before i stopped driving it.
The gas went bad, smells like ammonia or something. I siphoned out as much as I could..
So, when I put the key in and turned it forward, I couldn't hear the fuel pump priming....
Suspecting there to be a problem, I pulled the fuel line before the filter in the following pic:



My logic being that when the fuel pump primes now, it should shoot some gas out on the floor.. Turning the key, no gas, at all.
So, I found the fuel pump relay as in the next pic:



I tried jumping it there with the key on and off, no gas, no pump operation..
After reading the forum a bit more, I decided to try to fuel pump jumper wire under the hood, coming out of the harness..
I jumped that to 12v with key off and on, no pump operation:





So the question is... is there anything else I can do to check out this pump??
Like I said, the last time I ran it, about a year ago, the car ran fine.. I Definitely should not have let it sit this long.
Also, if I get the pump working, or replace it, can I jump the fuel pump to pump out the rest of the bad gas??? Or just get out what I can and fill the tank with fresh gas and hope the mix is strong enough?

If I have to replace the pump, I was thinking of doing it from inside the car, through the top of the fuel tank like I have seen some people do it here. I am just looking to get this car running again!! Any help would be greatly appreciated. THanks.

 

Having just gone through this myself, I can pretty safely say you've done everything necessary to check the pump. It's gone, Get it replaced. :P I went from inside the car too, it's about half the price, and if you don't plan to sell the car anytime soon, it's worth it.

 

Did you buy the OEM fuel pump/sending unit, or go with an aftermarket external?? How much did it end up costing you and about how much time with regular hand tools?

 

I find it kinda strange thatthe pump itselfwent from working fineto completely deadafter sitting a while.Could happen, but? There is another thing you didn't check yet. Under the car, way above the muffler, there is a wiring harness that comes through the body and goesto the pump. In that line is a plug, and it is possible that it's corroded. Worth a look anyway,plus you can tap off at that point to try hot-wiring the pump too toeliminate any wiring problems questions.
BTW, maybe I don't have to tell you, but be sure to block the car up this time before crawling under it.

 

Ok, I'll take a look at that wiring and the clip there.
PS there are jack stands in further in front that u can't see in the pic.. I Just left the jack on their lightly in cause I fixed the problem to let the car back down.

 

Well, I'm fortunate in that my mom works at the garage where we had it done. It ended up being ~250 dollars for a Delphi, and all the labor. I don't know for sure how long they were working though. Next chance I get, I'll ask.

 

Can someone show me a picture of the fuel pump test wire on 99 camaro. and also do you jump from positive on battery to this wire. Does the key need to be on?

 

if you have bad gas or whatever in the tank u better take the tank out and drain it. while your at it u can check or change the pump. like 69 says make sure u are getting power to the pump. if u are then the pump is probly bad. did u check all the fuses? did u check the relay plug for juice to make sure your getting power to it.