I have a 1998 chevy suburban i changed the fuel pump,filter,fuel pump relay and the ignition switch still will not start it's getting spark the fuel pump is not working still.any ideas?
Wiring problems with the fuel pump circuit.
I reset the security and it started and ran good. I shut it off and it won't start now. I am thinking ecm maybe?
More likely the security system is messed up, shutting off the fuel pump cause it believes the rig has been broken into. Door switches are a big problem with the security.
remove the ground from the battery to reset the ecu. when you turn the key on you should hear the fuel pump run to pressurize the system. If the pump runs car should start. If pump does not run sounds like an ecu problem. Did you check the old pump to see if it was bad?
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