What is this knock when I start?

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

dmarkh

Full Access Member
Joined
Jan 21, 2020
Posts
148
Reaction score
36
Location
West Melbourne Florida
I'm pretty sure this knock is NOT cam phaser related. But what is it. It's random and not cold start related. There are 2 clips. One normal and one with the knock. It's kind of hard to hear but you can. It is more pronounced live.
 

Attachments

  • start-with-knock.wav
    1.4 MB
  • start-with-noknock.wav
    1.6 MB

LouK

Full Access Member
Joined
Apr 2, 2020
Posts
140
Reaction score
124
Location
USA
I honestly can’t hear anything, could be because I’m trying to listen on my phone.
What could be your rattle from other research I did while diagnosing my cam phaser was that it could be the wastegate. Completely harmless and it’s just the linkage making a slight noise and that’s it. If you YouTube it guys have posted videos of it.
 
Top