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FixItMan, Master Technician
Category: Lincoln
Satisfied Customers: 17289
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I have a knocking noise sometimes on lower end and a ticking

Customer Question

I have a knocking noise sometimes on lower end and a ticking noise
JA: Where exactly do you think the noise is coming from? And how long has this been going on?
Customer: I jist bought the car last week. It sounds like front drivers side... Towards the.bottom. I have check engine light on and a.code for P0401
JA: What is the model/year of your Lincoln?
Customer: 2001 lincopn navigator with the A vin
JA: Are you fixing your Navigator yourself? What have you tried so far?
Customer: I have not done anything ywt to it
JA: Anything else you want the mechanic to know before I connect you?
Customer: No
Submitted: 6 months ago.
Category: Lincoln
Expert:  FixItMan replied 6 months ago.

Hello, my name is***** would start by changing the oil and the oil filter. A cheap or dirty oil filter and the wrong weight oil will cause this on your engine. If the oil has been changed and the noise is still present then most of the time it is an issue in the timing chain or it can be more serious like a rod knock. The most common issue I have seen on this engine is a timing chain tensoiner or guide that is failing which causes this same noise. I hope this helps. Please let me know if you need further assistance.