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Home >> Chevrolet >> 1997 >> Astro Van Passenger, AWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> Remove, Overhaul & Install >> Engine Controls - Removal & Installation 4.3L >> Computerized Engine Controls >> Knock Sensor (KS) Module >> Removal & Installation
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Removal & Installation

  1. KS module is located in PCM. Disconnect negative battery cable. Remove PCM from vehicle. See POWERTRAIN CONTROL MODULE (PCM) . Position PCM with access cover up. Remove access cover from PCM.
  2. Using thumb and forefinger, squeeze both ends of knock sensor module inward and pull module up from access hole. To install, reverse removal procedure. Ensure module latches into holder in PCM.
NOTE: If PCM is replaced, KS module must be transferred from original to replacement PCM.
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