Comments by "DonnieV" (@donniev8181) on "Customer States: Knocking Noise and Metal in Oil. (NO PROBLEM FOUND) Ford F-150 5.4 Lifted 4x2" video.

  1. I think the colony of crickets may be another symptom of what's causing the knocking issue, the belt tensioner is worn.
    3
  2. Worn belt tensioner?
    1