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Re: Chev ECM warranty issue BS
Posted to Industry Issues Forum on 4/12/2009 3 Replies

Yes, you need to diagnose the vehicles first.

One was a 2006 Trailblazer, the other was a 2006 Silverado Duramax.

Both had different causes for the failure, and I misdiagnosed the D-Max by replacing the PCM on it.

Rags Login to read more.

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