Harmonic balancer
LS2 1SB Cobalt Red
Joined: May 2025
Posts: 11
Likes: 6
From: WI
Harmonic balancer
I had a bad harmonic balancer on my 05, you can visibly see the wobble, and I had a slight consistent chirp as shown in the clip (my video attached below), as you can visually see the belt getting closer and further away from the edges of pulleys and the wobble, if the balancer looks like its visually wobbly replace it but from the video you sent you are moving too much to visually see, go to the passenger side and hold the video very still, or a dealership has a laser device that can check all of your pulleys are aligned
Racer
Joined: Mar 2008
Posts: 327
Likes: 22
From: Ligonier PA
Thats the most solid looking harmonic balancer on a LS motor I've ever seen. I'd relieve the pressure on the serpentine belt and check the idler pulley for free spinning without squeaks. If my harmonic balancer looked that good, I'd quit looking at it.
Retired & lovin' it!
Joined: Mar 2005
Posts: 4,475
Likes: 549
From: Jackson NJ
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