1998 Mercury Marquis


Thomas Wolf

January, 9, 2011 AT 1:00 AM

1998 Mercury Grand Marquis it turns over, won't start, I can't hear fuel pump running, replaced it and the relays and fuses that have to do with fuel pump no luck do you have any ideas where to look next? Thanks also the reset button in trunk is pushed in.


1 Answer



January, 9, 2011 AT 1:08 AM

Cranks but no start condition: Get a helper disconnect a sparkplug wire or 2 and ground it to the engine at least 3/16 away from ground -have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, Do you hear the fuel pump come On when you turn key on? If not check fuel pump fuse and fuel pump relay if so, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs, coil's resistances, distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it.

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