Removal & Installation

Remove air cleaner. Disconnect electrical connector. Remove retaining screws and ISC. To install, reverse removal procedure. To adjust ISC minimum and maximum authority, see GENERAL MOTORS V8 TUNE-UP article in TUNE-UP section.

NOTE: The ISC motor is factory calibrated and should not be disassembled. Replace as complete assembly only. DO NOT soak ISC motor in carburetor cleaner.

Fig 1: Exploded View of Throttle Body Assembly

Courtesy of GENERAL MOTORS CORP.