Grand Marquis

Asked by Cagedhyena Oct 25, 2018 at 08:39 PM about the 1998 Ford Crown Victoria

Question type: Maintenance & Repair

Cylinder 4 misfire. Coil and primary and
secondary circuit... Changed plugs and that
one coil. Cleaned maf and throttle body. Any
ideas on next move O2? Cat? Still misfiring
bad.

1 Answer

Cagedhyena answered 6 years ago

Haha. Just going down list of the code that popped up. If you read I already did plugs and coil. Says next is possible faulty O2, faulty cat. Code p0304

Mark helpful

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