Originally Posted by jonbee
car as to run for awhile and get hot or normal temp
it dies like turning off the key and restarts right back up in one or revolutions
sometimes it will die again in a coupe of seconds and then it might be a few minutes
i have poke and prodded fuse block, fuses, relayes,switched relays and nothing
i have replaced ign module and crank sensor
fuel pressure never drops when it dies
I resently had a problem VERY SIMULAR! Like you, at first I used a fuel pressure tester and could see no drop when dieing , then after replacing parts that didnt need it and much other testing, I did the fuel test again AND WATCHED THE GUAGE LIKE A HAWK! I found the pressure droping, it only takes about 3-4 seconds for the pressure to drop to zero and the engine would die.
The bigest problem I had was getting the car to do this stalling in the driveway with the tester installed.
Like you! If I turned the key off after it died and then back on it would run for a few seconds and die again, the car is just running off the prime shot. Try your tester then!
After I found this drop in fuel pressure , it was like light at the end of the tunnel for me! I knew it was either the pump or the wiring. First I riged up a test light for the wire that supplyed 12v to the pump to see if power was droping out.
Them I got one of those in-line amp meters from harbor fraight (12 bucks) and I pluged it into the fuel pump fuse location.
What I found was the when the engine dies, my test light was on steadly and the amp meter would climb to 14.5 amps as the pressure was droping. Thats to many amps!!
I had a internal fuel pump problem that was intermitent.
95 old cutlass
orignal fuel pump
I'm now on about my 8th day after the new pump replacement, NO PROBLEMS!!