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HOMESERVICE MANUALSCHEVROLET2001CHEVY EXPRESS G3500, VAN PASSENGER EXTENDED, 6.5 FREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 254 (COMPUTER RELEARN PROCEDURES)THROTTLE BODY RELEARN PROCEDURESATURN - 3.0L
2001 Chevrolet Chevy Express G3500, Van Passenger Extended, 6.5 F

SATURN - 3.0L

2001 Chevrolet Chevy Express G3500, Van Passenger Extended, 6.5 FSECTION SATURN - 3.0L
WARNING: This page does not describe the selected car, but rather 60 other vehicles, including the 2003 Saturn Vue, 2003 Saturn LW300, 2003 Saturn LW200, 2003 Saturn L300, and 2003 Saturn L200. However, it is still accessible from the selected car via links, so may be relevant.

The engine control learns the idle position of the throttle body for correct operation. When the throttle body or ECM is replaced, this procedure must be performed to ensure correct idle operation. The engine idle may be unstable or a DTC may set if the idle position has not been learned.

Perform the following procedure in order to allow the ECM to learn the idle position:

  1. Ensure that the following conditions are met:
    • The vehicle speed is 0 mph.
    • Accelerator pedal angle is less than 14.9 degrees.
    • Battery voltage is more than 10 volts.
    • ECT is 41-212°F (5-100°C).
    • IAT is more than 41°F (5°C).
  2. Turn OFF the ignition for 30 seconds.
  3. Turn ON the ignition, with the engine OFF for 60 seconds.
  4. Turn OFF the ignition.

RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.