Question about 2003 Lincoln Navigator
You need to get the computer scanned and the codes read. You could go to autozone to have the codes read. By your description I'd be willing to bet it has at least a p0300 code which is a random missfire. While it could be many things causing the missfire/sputtering the most likely culprit is spark plugs or the ignition coil as they are known to go bad commonly on those motors.
Unfortunately they aren't exactly a walk in the park to do. Navigators are one of the more difficult vehicles to replace spark plugs on as the cowl overhangs the motor quite a bit.
Posted on May 10, 2009
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Posted on Jan 02, 2017
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