LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 451 (Engine Controls - Removal & Installation) >> Air Induction Systems >> Throttle Body >> Installation

Throttle Body: Installation

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2003 GMC Yukon XL, 2003 GMC Yukon, 2003 Chevrolet Tahoe, 2003 Chevrolet Suburban, and 2003 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
  1. Clean gasket surface on intake manifold and throttle body. Install NEW throttle body flange gasket. Install throttle body assembly. Install throttle body mounting nuts and tighten to specification. See TORQUE SPECIFICATIONS .
  2. To complete installation, reverse removal procedure. Fill and bleed cooling system.
  3. Connect a scan tool to Data Link Connector (DLC), under left side of instrument panel. Turn ignition on, with engine off. Using scan tool, ensure vehicle is not in a reduced engine power mode. Operate accelerator pedal while observing throttle angle on scan tool. Accelerator pedal should operate freely, without binding, between closed throttle and Wide Open Throttle (WOT).


  1. Clean gasket surface on intake manifold and throttle body. Install NEW throttle body flange gasket. Install throttle body assembly. Install throttle body mounting nuts and tighten to specification. See TORQUE SPECIFICATIONS . To complete installation, reverse removal procedure.
  2. Connect a scan tool to Data Link Connector (DLC), under left side of instrument panel. Turn ignition on, with engine off. Using scan tool, ensure vehicle is not in a reduced engine power mode. Operate accelerator pedal while observing throttle angle on scan tool. Accelerator pedal should operate freely, without binding, between closed throttle and Wide Open Throttle (WOT).
scientia non olet · About LEMON Manuals