Download: Diagnosing GM 3.3L 3300 / 3.8L 3800 Harmonic Balancer Problems

By craig1974


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In this video i will show you how to backyard diagnose harmonic balancer failure problems on GM 3300 3.3L, and 3800 3.8L engines. Very simple. The harmonic balancer's are very failure prone on these engines. Enjoy!