Question about 2003 Lincoln Navigator

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There is a knocking under my 03 Navigator whenever I am idle. Very irratating and almost embarrassing when at a light or stop sign. what is this...the ball joint, muffler, exhaust, what? ...I need advise before going to the dealership and always feeling like I'm getting ripped off.

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Mike Butler

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Sounds like maybe a loose heat shield or exhaust part. My guess is that a trip to speedy muffler or similar, will have you in & out without all the worry. Remember, once the diagnosis is done, they have to ask if you want it repaired and give an estimate for you to o.k. it. If it sounds reasonable, go for it, if not, say thanks, but not right now, and go get a second opinion.

Posted on Sep 03, 2009

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steve noel

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Check for broken brackets on exhaust system, also check for worn or damaged transmission and or engine mounts and mounting brackets

Posted on Sep 03, 2009

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