2002 Lincoln Navigator Q&A
2002 Lincoln Navigator Question: My exhaust is loud
exhaust can cost up to around $1000.00 depending on parts you choose. can't say about 6 cylinder. mechanic won't know prob. until he opens it up. get diagnostic run on engine to narrow down prob. if it's not firing may just spark plug or ignition coil. - arturo08
when i start my vehicle a loud knocking sound can be heard in the engine but goes away not too long after mostly after i start driving but if i keep it in park after starting up it doesnt seem to g...