Speed,stalling and hesitation

Asked by GuruZCXTV Oct 29, 2017 at 04:16 PM about the 2005 Mercury Grand Marquis GS

Question type: Maintenance & Repair

Changed the cord packs and spark plugs
that were misfiring and now my car won't go
over55 mph, what can be my problem?

2 Answers
180

Tom answered 6 years ago

Have you retrained your ECM after the repairs?

2 people found this helpful.
Mark helpful

Your Answer:

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