SHELBY GT-40 ULTIMATE Member
Joined: Feb 2007
It isn't the light, it's the balancer failing why the timing would look to be jumping around. The balancer marks are actually moving, not the timing itself.
It'd also explain the vibration, it's not doing what it's real job is which is to quell those vibrations. Get a new one on there, it should feel better.
Going with another stock balancer? Why not go with at least a Pioneer balancer? Not all balancers are the same.
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