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Home >> Isuzu >> 2007 >> i-290 LS, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 48 (Automatic Transaxle - 4T80-E - Introduction (2 Of 2)) >> Repair Instructions >> Repair Instructions - On Vehicle >> Scavenge Screens and Seals Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2007 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Raise the vehicle and support. Refer to Lifting and Jacking the Vehicle .
  2. Place a drain pan under the transmission bottom pan in order to catch the fluid.
    3. IMPORTANT: Removing the bottom pan on the Hydra-Matic 4T80-E only partially drains the transaxle fluid. The side cover and the torque converter hold the remaining fluid. To drain fluid from the side cover, remove the drain plug in the case after bottom pan removal. There is no need to drain the torque converter during most service procedures.
  3. Loosen the bottom pan bolts. Drain any fluid in the pan.
    4. Fig 1: View of Bottom Pan
    GM97463Courtesy of GENERAL MOTORS CORP.
  4. Remove the bottom pan bolts, pan, and seal.
  5. Inspect the bottom pan for dents or nicks on the sealing surface. If damaged, replace.
    6. IMPORTANT: The bottom pan seal is reusable. Replace with a new seal only if sealing surface is damaged.
  6. For proper sealing, clean and dry the bottom pan and the case sealing surfaces. In order to maintain proper bolt torque, the bolts and tapped holes in the case must be clean and dry.
    7. Fig 2: View of Left Right Scavenger Screens
    GM97465Courtesy of GENERAL MOTORS CORP.
  7. Remove the left and/or right scavenger screens.
  8. Remove the seals. Use a small screwdriver to pry the seals from the case. Do not score or damage the case.
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