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My Navigator sounds like a desiel when I first start it. After 30 sec. Its gone.

(2003 Lincoln Navigator)
in Queen Creek, AZ on February 07, 2013
Noise is when truck is started and goes away after about 15/ 30 seconds of running. Sounds like a desiel or like the exhaust has a leak at the exhaust manifold .
Displaying 2 answers & 2 comments
Popular Answer
of Greg's Orange Auto on February 07, 2013
double is correct or poss camshaft follwers are worn
on February 10, 2013
Thanks for the help .
on February 07, 2013
without actually hearing it we can only guess.But common issues are with the timing chain tensioners and guides.Also make sure the oil level is full and oil change interval has not been neglected.
on February 10, 2013
Thank you for your help on my question. I was actually afraid you were going to say that.
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