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GMC TSB #09-06-04-026G
2009 GMC Envoy
TSB Document:
Affected Component: POWER TRAIN
- Summary
- This informational bulletin provides information of suspected tampering or vehicle modifications for non-GM (Aftermarket) engine and transmission calibrations for V6 and V8 gasoline engines Using Tech 2® or global diagnostic system 2 (GDS 2)
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