Permanent piston slap on EJ253? Rod knock?

ok-boss93@alien.top

B to Mechanic Advice@gearhead.townEnglish · 1 year ago

09 Impreza EJ253 with 70k miles, head gasket near cylinder 4 beginning to have seepage. Engine is warmed up.

The noise is overshadowed when listening from the top of the engine, parking near a wall or putting my phone directly underneath the car allows you to hear the noise the most

https://youtu.be/h9hp2bxn6W4?feature=shared

https://youtu.be/sX4yRKc66iU?feature=shared

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