Changed fuel pump and the relay. Fuel pump will not kick on, so changed the relay again. Steel pump won't kick on. Is there a reset button? Or do I have to reset the relay, if so how would I do that?
4 Answers
some cars have a inertia switch in the trunk and some at right kick panel up front to kill pump in an accident, with a reset, not sure on the Montana would have to research, sounds like you may have changed that for nothing get a Hanes manual at parts store that tells those common things maybe even a security issue holding it out
check that you have power going to the pump- the wire should be hot- if not, trace it back to the battery using a wiring diagram- something is not flowing- there might be a "kill" relay that has just worn out-
doityourselfer answered 5 years ago
my 2002 pontiac montana quit running while idling to charge up the battery. now won't start. spark OK to plugs. fuel pump relay checks OK. fuel pump runs when relay is bypassed. fuel pump relay is NOT BEING ENERGIZED. the 12 + volts from the PCM to relay coil socket relative to ground, when ignition is switched on with relay removed, decays to zero when relay is re-inserted. suggests a problem with the PCM fuel pump relay output (high impedance). vehicle still won't start with relay bypassed and fuel pump running. plenty of fuel in tank. scratching my head. faulty PCM?
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