99 mercury marquis

Asked by Dec 25, 2015 at 07:56 PM about the 1999 Mercury Grand Marquis 4 Dr LS Sedan

Question type: Maintenance & Repair

After washing engine car stalls misses runs
rough kills what happened

4 Answers

27,485

let it dry out.

1 of 1 people found this helpful.
70,815

You have individual ignition coils on the spark plugs. You can either remove and dry them one by one. Or as Kelly said let everything dry out. When washing the engine you need to cover these coils so they don't get wet. Once everything drys out it'll be fine. HTH. - Jim

1 of 1 people found this helpful.
23,475

Don't wash engines on 21st Century cars- do you realize what complicated electronics are under those hoods?!

52,495

When it dries out it may or may not be fine. Worst case is that you will have to buy an ignition coil or two. Be careful when washing an engine with coil on plugs and don't direct the spray directly at where the plugs and coils reside. Also washing a warm (not hot) engine is helpful in that the wash water evaporates faster.

2 of 2 people found this helpful.

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