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Home >> GMC >> 1995 >> Forward Control 6.5 Y, Automatic >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 11 (Engine Controls - Remove/Install/Overhaul - 4.3L) >> Fuel System >> Intake Manifold Tuning Valve (CPI) >> Removal & Installation
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Removal & Installation

WARNING: This page is about a different variant/trim than selected.
  1. Disconnect intake manifold tuning valve electrical harness connector. Remove intake manifold tuning valve retaining screws. Discard "O" ring. Use carburetor cleaner to remove carbon deposits. DO NOT soak tuning valve assembly in solvent.
  2. To install, reverse removal procedure. Lubricate NEW "O" ring with clean engine oil. Apply thread locking compound (Loctite 262) to intake manifold tuning valve retaining screw threads. Tighten retaining screws to 18 INCH lbs. (2 N.m). Reconnect electrical harness connector.
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