have changed relay did not help. apparently not building up pressure and shutting off . Is the pressure switch built into the pump? Do I need to replace pump?
2006-08-23 12:58:21 · 4 answers · asked by Anonymous in Cars & Transportation ➔ Maintenance & Repairs
You say you changed the relay.
Try removing the relay and see if the fuel pump is running with the relay out. If it is you have a problem in the wiring or other part of the fuel pump circuit. The computer picks up this circuit. As well as an oil pressure sensor.
Get a wiring diagram for your truck from this site.
http://www.autozone.com/repair_info.htm
enter your truck and print the wiring diagram.
One thing to try, is , remove the negative battery cable for a few minutes and see if the circuit will reset. It costs nothing to try it.
Yours" Grumpy
2006-08-23 13:13:42 · answer #1 · answered by Grumpy 6 · 2⤊ 0⤋
Check for the fuel pump relay first. Find it and check it. There is also a fuel pressure regulator but I think that's mechanical. Maybe not, it will be close to the intake manifold. Good luck.
2006-08-23 13:02:51 · answer #2 · answered by jeff s 5 · 0⤊ 0⤋
no, cause you could have pre-ignition as a result of carbon build up in the head.
clean the head first
if you worried about the battery going flat put in a kill switch to cut the power
you can also stop the engine running by blocking off the air flow intake
these are the things i have donne oin the past and they worked for me
2006-08-23 13:08:08 · answer #3 · answered by rod is single 1 · 0⤊ 2⤋
Call your local Chevy dealer and ask if there is a bulletin on your problem.I remember a truck in our shop doing that, but I didn't work on it and can't remember what was the cause. I will ask the tech who did work on it and let you know .
2006-08-23 16:26:44 · answer #4 · answered by B H 3 · 1⤊ 0⤋