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Home >> GMC >> 1985 >> Forward Control 5.7 M, Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> Remove, Overhaul & Install >> CCC Component Removal & Installation >> Removal & Installation >> Electronic Control Module (ECM) >> Installation
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Electronic Control Module (ECM): Installation

Install PROM (and CALPAC) on new ECM. Reinstall ECM into vehicle. Reconnect electrical connectors to ECM. Install right hand hush panel. Reconnect negative battery cable to battery.