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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1496 (Engine Mechanical - 5.3L) >> Repair Instructions >> Off-Vehicle Repair Instructions >> Throttle Body Removal

Throttle Body Removal

WARNING: This page is about a different car, the 2003 GMC Envoy XL and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT: The intake manifold, throttle body, fuel injection rail, and fuel injectors may be removed as an assembly. If not servicing the individual components, remove the manifold as a complete assembly.
  1. Remove the electrical wire harness connectors from the throttle body.
  2. Remove the engine coolant air bleed hose and clamp.
  3. Remove the throttle body nuts.
  4. Remove the throttle body.
    Fig 1: Removing Throttle Body
    G02129336Courtesy of GENERAL MOTORS CORP.
  5. Remove the throttle body gasket (1).
  6. Discard the gasket.
  7. Remove the throttle body studs, if required.
    Fig 2: Removing Throttle Body Gasket
    G02129337Courtesy of GENERAL MOTORS CORP.
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