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Home >> GMC >> 2000 >> K 2500 Truck 4WD V8-5.3L VIN T >> Repair and Diagnosis >> Relays and Modules >> Relays and Modules - Powertrain Management >> Relays and Modules - Computers and Control Systems >> Engine Control Module >> Service and Repair >> Idle Learn Procedure
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Idle Learn Procedure

IDLE LEARN PROCEDURE
Anytime the powertrain control module (PCM) or the battery is disconnected, the PCM loses power, or the PCM is reprogrammed, the PCMs learned idle position is lost. The engine idle is unstable when the learned idle position is lost.

AUTOMATIC TRANSMISSION
1. Turn "OFF" the ignition.
2. Restore the PCM battery feed.
3. Turn "OFF" the A/C controls.
4. Set the parking brake and block the drive wheels.
5. Start the engine.
6. Ensure that the engine coolant temperature is more than 80°C (176°F).
7. Shift the transmission into "Drive".
8. Allow the engine to idle for 5 minutes.
9. Shift the transmission into Park.
10. Allow the engine to idle for 5 minutes.
11. Turn "OFF" the engine for 30 seconds.

MANUAL TRANSMISSION
1. Turn "OFF" the ignition.
2. Restore the PCM battery feed.
3. Turn "OFF" the A/C controls.
4. Set the parking brake and block the drive wheels.
5. Place the transmission in "Neutral".
6. Start the engine.
7. Ensure that the engine coolant temperature is more than 80°C (176°F).
8. Allow the engine to idle for 5 minutes.
9. Turn "OFF" the engine for 30 seconds.
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