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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1444 (Engine Mechanical - 5.3L (Lm4)) >> Repair Instructions >> Off-Vehicle Repair Instructions >> Throttle Body Removal

Throttle Body Removal

WARNING: This page is about a different car, the 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 Chevrolet TrailBlazer, and 2004 Buick Rainier. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Throttle Body & Nuts
    GM825837Courtesy of GENERAL MOTORS CORP.
    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.
    5. Fig 2: View Of Throttle Body Gasket
    GM1277091Courtesy of GENERAL MOTORS CORP.
  5. Remove the throttle body gasket (509).
  6. Discard the gasket.
  7. Remove the throttle body studs, if required.
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