johnnyrocket
New member
- Joined
- Feb 19, 2012
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- 2
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- Age
- 42
just acquired a 99 burban with 154,000 5.7 auto. at 21.5 til about 23 on the tach there is a pretty good vibration coming off the front of the truck somewhere. other than that it runs great though. visibly looked to see if a pulley was wobbling and nothing. the fan however did look to be out of balance more than i would assume anyways. any help or suggestions on where to go from here would be nice.