Question about 1999 GMC Sonoma

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99 gmc sonoma why would the countershaft make noise after installing new timing gears? Has a 4.3

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Gm had customer complaints due to the noise They would rattle pretty good right around 2000 rpm, the fix was to the replace the balance shaft gears at the same time endless the rattle noise didn't bother you.

Posted on Aug 30, 2010

Testimonial: "Thank you Sir for all the info. I look at those gears they look bad all."

  • eek88dj1969 Aug 30, 2010

    Oops they didn't look bad at all but next I do one will make sure I really look at them carefully. Thanks again!



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