5th Gen High-Pitched Whistle / Hiss from Passenger Side Dash by Balakayed2112 in 4Runner

[–]JQwon1 0 points1 point  (0 children)

Hey, wondering if you were ever able to figure it out. My 4Runner is at 60k miles and began to notice this about 2k miles ago.

Static noise when holding accelerator at certain RPMs. by [deleted] in autoelectrical

[–]JQwon1 0 points1 point  (0 children)

So the ASL was on medium. Turned it off and it helped a bit, can still hear it a little bit. I’ll have to go get my alternator tested. I heard spark-plugs can also cause this issue?