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Vehicle Driveability Computer Relearn Procedure (4.8L, 5.3L & 6.0L)

  1. On manual transmission vehicles, go to next step. On automatic transmission vehicles, turn ignition off. Reconnect PCM battery connection. Turn A/C off. Set parking brake and block drive wheels. Start and operate engine until coolant reaches 176°F (80°C). Place transmission in Drive. Operate engine at idle for 5 minutes. Place transmission in Park. Idle engine another 5 minutes. Turn engine off for 30 seconds. PCM relearn procedure is complete.
  2. On manual transmission vehicles, turn ignition off. Reconnect PCM battery connection. Turn A/C off. Set parking brake and block drive wheels. Place transmission in Neutral. Start and operate engine until coolant reaches 176°F (80°C). Operate engine at idle for 5 minutes. Turn engine off for 30 seconds. PCM relearn procedure is complete.
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