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Home >> Chevrolet >> 1990 >> Forward Control 4.3 Z, Standard >> Repair and Diagnosis >> Engine Performance >> Remove, Overhaul & Install >> Engine Controls - Remove/Install/Overhaul >> Electronic Spark Control (ESC) Module >> Engine Controls - Remove/Install/Overhaul >> Removal & Installation
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Removal & Installation

Turn ignition off. Remove screws holding bracket to firewall. Rotate bracket to access ESC module. Disconnect ESC module harness connector. Remove ESC mounting screws and remove ESC. To install, reverse removal procedure.