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October 1, 2002 Service bulletin

Shudder, rocking motion, binding, feels like vehicle is stuck in 4WD (crow hop) when turning at low speeds

Chevrolet technical service bulletin 020421008 for 2002-2003 Chevrolet Trailblazer, 2002-2003 GMC Envoy and 2002-2003 Oldsmobile Bravada.

Bulletin number
020421008
Component
Power train
Summary
Shudder, rocking motion, binding, feels like vehicle is stuck in 4wd (crow hop) when turning at low speeds. Tt

Owners of these vehicles have filed 592 complaints in the transmission category.

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