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2003
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TrailBlazer 4.2 S, 4WD
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Repair and Diagnosis
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Engine Performance
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Remove, Overhaul & Install
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Engine Controls - Removal & Installation
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Programming
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Powertrain Control Module (4.2L)
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Notes
Powertrain Control Module (4.2L): Notes
NOTE:
Programing Powertrain Control Module requires a compatible scan tool and a Techline® terminal. Procedure uses a Tech 2™ scanner.