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Home >> GMC >> 1991 >> Forward Control 4.3 Z, Automatic >> Repair and Diagnosis >> Engine Performance >> Remove, Overhaul & Install >> Engine Controls - Remove/Install/Overhaul >> Fuel System (PFI) >> Throttle Body Removal & Installation >> Removal

Throttle Body Removal & Installation: Removal

  1. Relieve fuel pressure. See FUEL SYSTEM PRESSURE RELIEF under FUEL SYSTEM (PFI) . Disconnect negative battery terminal. Loosen charge air cooler mounting bolts, and reposition charge air cooler unit to access throttle body.
  2. Disconnect electrical connectors, vacuum lines, accelerator cable, throttle valve cable, and cruise control cable (if equipped). Remove throttle body screws. Remove throttle body assembly from manifold.
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