Question about 1999 Lincoln Navigator
First, what caused the engine to overheat, and was that problem fixed? Have you had the computer scanned to see if there are any trouble codes associated with the missing or skipping? What prompted you to change the #4 coil? A little more information will be helpful.
Posted on Jan 30, 2011
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Posted on Jan 02, 2017
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I'd suspect a sticking injector--car should have set the check engine light. Read the code(s) to progress further. If the coil pack were a problem, it would not be likely to fix itself. If the codes indicate an injector problem, try an injector cleaner in the fuel--worst case, replace the bad injector. The codes should indicate which cylinder to change the injector.
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