Operation CHARM
: Car repair manuals for everyone.
Home
>>
GMC Truck
>>
1991
>>
Syclone V6-262 4.3L Turbo
>>
Repair and Diagnosis
>>
Powertrain Management
>>
Computers and Control Systems
>>
Idle Speed/Throttle Actuator - Electronic
>>
Testing and Inspection
>>
Idle Air Control (IAC) Reset Procedure
Idle Air Control (IAC) Reset Procedure
To reset idle
IAC MOTOR
.
1.
Depress
accelerator pedal
slightly.
2.
Start and run engine for 5 seconds.
3.
Turn ignition "OFF" for 10 seconds.
4.
Restart engine and check for proper idle operation.