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Home >> Chevrolet >> 1992 >> Forward Control 7.4 N >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Idle Air Control - Vehicles Without 4L80-E Transmission >> Idle Air Control System Check Chart >> A/C Compressor Or Relay Failure
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A/C Compressor Or Relay Failure

Refer to A/C diagnosis if circuit is shorted to ground. If the relay is faulty, idle problem may exist. Refer to BASIC TESTING article in this section section.

NOTE: If intermittent poor drivability or idle symptoms are resolved by disconnecting the IAC, carefully recheck connections, valve terminal resistance or replace IAC.