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 251 (Engine Controls - Removal & Installation) >> Air Induction Systems >> Throttle Body >> Removal & Installation

Removal & Installation

WARNING: This page is about a different car, the 2003 Pontiac Sunfire and 2003 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.
  1. Release fuel pressure. See FUEL SYSTEM PRESSURE RELEASE (CNG)  under FUEL SYSTEMS (CNG) or FUEL SYSTEM PRESSURE RELEASE (GASOLINE)  under FUEL SYSTEMS (GASOLINE).
  2. Disconnect negative battery cable.
  3. Remove the air cleaner resonator.
  4. Disconnect and mark harness connections and vacuum hoses from throttle body.
  5. Disconnect the Idle Air Control (IAC) valve harness connector.
  6. Disconnect the Throttle Position (TP) sensor harness connector.
  7. Disconnect the vacuum hoses at the throttle body.
  8. Disconnect the cruise control cable (2) from the throttle body (3) and accelerator bracket (1). See Figure. Remove the accelerator cable bracket.
  9. Disconnect the accelerator control cable (3) from the throttle body (4) and accelerator bracket (1). See Figure.
  10. Remove the 2 accelerator bracket nuts (3). See Figure.
  11. Remove the accelerator bracket (2) from the throttle body (1). See Figure.
  12. Remove the throttle body attaching bolts and studs (1). See Figure.
  13. Remove the throttle body (4) from the intake manifold.
  14. Tighten the throttle body attaching bolts and studs, and accelerator cable bracket nuts to test the accelerator movement by depressing the pedal to the floor and releasing the pedal.