The GM designation for the 5.7 liter, (350 cubic inch), TPI motor. This motor was used in other GM vehicles, but was used in the Corvette from 1985 t...
Subject: Re: Acceleration trouble by jimmers on 2008/9/22 0:48:32
Quote:
anesthes wrote: Quote:
jimmers wrote: I hooked up my 12v light to the fuel pump source again and started the car. The light will turn on while the car is running. When the car stalls the light will remain lit, and turn off about 2 seconds later. So I guess the pump is getting a good 12v source. Seeing as how the pump dies before the light, I can assume that the fuel pump itself is bad. Correct?
If the fuel pressure is dropping BEFORE the light goes out, then I'd guess the pump is failing.
I had a boat once, that would run for a minute or two and the engine was die. Mouse in the fuel tank kept getting sucked into the pickup. Fuel pressure would drop, engine stall, then the mouse would float away from the pickup and I'd be able to restart the engine. Food for thought.
Anyhow. if the fuel pressure IS in fact dropping it's pump related. Rule out ECM, FP relay, etc since you have good power. If the fuel pressure is NOT dropping, i'd move my bet to ignition.
-- Joe
Thanks for your help! The fuel pressure does drop to 0 psi before the light goes. I think I narrowed it down, but I'd love to know for sure. Are there any other tests I can do to know for sure?
