LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 833 (Automatic Transmission - 4L60-E/4L65-E (Service & Replacement)) >> Diagnostic Information and Procedures >> Automatic Transmission Oil Cooler Flushing and Flow Test (J 35944-A) >> Forward Flush

Forward Flush

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2003 GMC Yukon XL, 2003 GMC Yukon, 2003 Chevrolet Tahoe, 2003 Chevrolet Suburban, and 2003 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Forward Flush (1 Of 2)
G02111662Courtesy of GENERAL MOTORS CORP.
  1. Disconnect both hoses (1 and 2) from the oil cooler pipes and connect them to the opposite oil cooler pipe. This will allow the oil cooler and pipes to be flushed in the normal flow direction.
  2. Repeat Step 6 and 7 of the Back Flush.
    Fig 2: Identifying Forward Flush (2 Of 2)
    G02111663Courtesy of GENERAL MOTORS CORP.
  3. Release the trigger (1) of the J 35944-A  and allow water only to rinse the oil cooler and pipes for 1 minute.
  4. Turn the J 35944-A  water supply valve (3) to the OFF position and turn OFF the water supply at the faucet.
  5. Attach the shop air supply to the flushing system feed air valve (2) on the J 35944-A  and blow out the water from the oil cooler and pipes. Continue, until no water comes out of the discharge hose.
scientia non olet · About LEMON Manuals