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HOMESERVICE MANUALSCHEVROLET2001CHEVY EXPRESS G2500, VAN PASSENGER EXTENDED, 5.0 MREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 755 (AUTOMATIC TRANSMISSION, 4L60-E/4L65-E (TROUBLESHOOTING))TROUBLESHOOTINGAUTOMATIC TRANSMISSION OIL COOLER FLUSHING AND FLOW TEST (J 45096)CLEAN-UP
2001 Chevrolet Chevy Express G2500, Van Passenger Extended, 5.0 M

Automatic Transmission Oil Cooler Flushing and Flow Test (J 45096): Clean-Up

2001 Chevrolet Chevy Express G2500, Van Passenger Extended, 5.0 MSECTION Clean-Up
WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Main Power Switch & Main Function Switch
    GM1212328Courtesy of GENERAL MOTORS CORP.
  1. Turn the main function switch to the IDLE position and allow the supply vessel pressure to dissipate.
  2. Turn the main power switch to the OFF position.
    3. IMPORTANT: A small amount of water may drain from the bottom of the unit when the air supply is disconnected. This is a normal operation of the built-in water separator.
  3. Disconnect the supply and waste hoses and the 12-volt power source from the vehicle.
    4. Fig 2: Applying Shop Air Supply Hose To Quick-Disconnect
    GM1212333Courtesy of GENERAL MOTORS CORP.
  4. Disconnect the air supply hose from J 45096  .
  5. Dispose of the waste ATF in accordance with all applicable federal, state, and local requirements.
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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.