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Home >> Buick >> 1993 >> Roadmaster Base >> Repair and Diagnosis >> Engine Performance >> Remove, Overhaul & Install >> Engine Controls - Remove/Install/Overhaul >> Fuel System >> Idle Speed Control Motor (4.9L) >> Removal & Installation

Removal & Installation

Remove air cleaner. Disconnect electrical connector. Remove retaining screws and Idle Speed Control (ISC) motor. To install, reverse removal procedure. To adjust ISC minimum and maximum authority, see ADJUSTMENTS article in this section.

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