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 .
Lincoln Q&AAsk Your Question
2003 Lincoln Navigator Question: My Navigator sounds like a desiel when I first start it. After 30 sec. Its gone.
Answer #1bmdouble February 07, 2013, 10:21Master
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.
Replygtmike1, February 10, 2013, 19:13Rookie
Thank you for your help on my question. I was actually afraid you were going to say that.
Answer #2Greg's Orange Auto (13943 Answers) , Orange, CA - (714) 361-9386globalhelper February 07, 2013, 12:34Master
double is correct or poss camshaft follwers are worn
Replygtmike1, February 10, 2013, 19:15Rookie
Thanks for the help .