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1996 Mercury Marquis Repair Question


Topics covered: Engine, Fuel pump, Spark.
Mileage: 150,000 miles.

Asked on January 10, 2011

Engine not starting

1996 mercury grand marquis... Engine starting problem. Starter is cranking and the engine is not turning over (turning on). I've checked the fuel line, I sprayed carb choke in the air valve, and slammed the gas tank with a hammer. Also the battery is good
Avatar Asked by rasmsd

Answer

Replied on January 10, 2011

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.

Tiny Answered by rasmataz
68 questions asked
Replied on January 10, 2011

Thanks ras

Tiny Response from rasmsd
1 question asked