[mathieuMKC]

Hello Gents, looking for some info just bought an MKC 98500km


First off the MKC drives very well, No apparent issue of any kind, But I am getting some weird clicking noise coming from under, seems like it's happening around 2000 to 1000rpm and only decelerating it's it goes clickclickclickclick click lol. Almost similar to a Pedal bike coasting sound pedaling backwards, but then I decided I see if I get the same noise if its park and rev and it does seem to do the same noise after letting go the gas...



Any thoughts?



Thanks,

 

[asphaltcowboy]

If it does it while parked - it may be the engine valve/hydraulic lifters. They click when sticking or worn, and the clicking will go away as you raise the engine RPM. If they are sticking you could try an oil additive (assuming oil pressure is normal) - if they are worn ... $$$$ repair.

 

[Centex]

If it does it while parked - it may be the engine valve/hydraulic lifters. They click when sticking or worn, and the clicking will go away as you raise the engine RPM. If they are sticking you could try an oil additive (assuming oil pressure is normal) - if they are worn ... $$$$ repair.

Respectfully, that's not possible.

Please note that the 2.0l and 2.3l EcoBoost engines all use solid (non-hydraulic) lifters ("tappets" as called in the Workshop Manual).

Excessive noise might be due to out-of-spec valve clearance but not due to a sticking or worn hydraulic lifter, the latter do not exist in these engines.

FWIW there's no 'spec interval' for checking valve clearances on these engines but also noteworthy that followers of 4-cylinder EcoBoost forums will observe a conspicuous rarity of posts documenting valve-clearance issues at any mileage.

IF a rare valve clearance issue is suspected that can be measured and corrected without cam removal at much lower cost than hydraulic lifter replacement (if they were used) if out of warranty. The base PN for the tappets common to both the 2.0l and 2.3l EcoBoost is CP9Z-6500-JCB (thickness must be specified when ordering).