LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> GMC >> 1998 >> Forward Control 7.4 B >> Repair and Diagnosis >> Engine Performance >> Remove, Overhaul & Install >> Engine Controls - Remove/Install/Overhaul - 7.4L >> Fuel System >> Throttle Body >> Removal & Installation
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Removal & Installation

  1. Disconnect negative battery cable. Remove air cleaner resonator from throttle body. Disconnect IAC and TP sensor harness connectors. Disconnect vacuum hose from throttle body.
  2. Disconnect control cables from throttle body. Remove accelerator cable bracket. Remove throttle body attaching bolts. Remove throttle body and gasket. To install, reverse removal procedure.