Well I know this is a common post, but I figured I'd get your input.
I am getting a tick sound, thought it was exhaust leak, but it isn't. Driver side of the engine, towards the rear. When I touch the last spark plug wire it actually feels like it is pulsating, the others I feel nothing. Is this the sign of a bad coil pack?
Or could it be push rod or rocker that needs replaced/upgraded? Just curious why the plug wire would feel different than the others. Thanks for any help
Btw the car runs fine, no real change in performance or idle smoothness. Just a slick ticking sound, almost sounds like an arcing sound of electricity... I know its tough to diagnose over the internet, just thought I'd ask. Thanks!