Removal & Installation (4.3L)
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2003 GMC Savana Special, 2003 GMC Savana Camper Special, 2003 GMC Savana, 2003 Chevrolet RV Cutaway, and 2003 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
Ensure residual fuel pressure is released before working on throttle body.
- Disconnect negative battery cable. Remove engine cover. Remove air cleaner outlet duct. Remove air cleaner adapter stud. See Fig 1.
- Disconnect accelerator and cruise control cables. Remove accelerator cable bracket bolts and bracket. Disconnect IAC valve and TP sensor harness connectors from throttle body. See Fig 2 and Fig 3 .
- Remove throttle body retaining studs. See Fig 4. Remove throttle body assembly from intake manifold. Remove flange gasket and discard. See Fig 5.
- Clean gasket surface on intake manifold and throttle body. Install NEW flange gasket. Install throttle body assembly. Install throttle body studs and tighten to specification. See TORQUE SPECIFICATIONS . Install air cleaner adapter stud.
- To complete installation, reverse removal procedure. Before starting vehicle, ensure throttle and cruise control linkage does not hold throttle open.
NOTE:
Identification number is stamped on throttle body. Use identification number to order replacement components.