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Home >> Chevrolet >> 2008 >> Optra LT, Automatic >> Repair and Diagnosis >> Transmission >> Hydraulic Diagrams >> Automatic Transaxle - ZF 4HP 16 - Service, Overhaul, Removal & Installation, Troubleshooting & Diagnosis >> Automatic Transmission Fluid Leaks >> Methods for Locating Leaks

Methods for Locating Leaks

General Method

  1. Verify that the leak is transaxle fluid.
  2. Thoroughly clean the suspected leak area.
  3. Drive the vehicle for approximately 25 km (15 mi) or until the transaxle reaches normal operating temperature of approximately 88°C (190°F).
  4. Park the vehicle over clean paper or cardboard.
  5. Turn the engine OFF and look for fluid spots on the paper.
  6. Make the necessary repairs to correct the leak.

Powder Method

  1. Thoroughly clean the suspected leak area.
  2. Apply an aerosol type powder, such as foot powder, to the suspected leak area.
  3. Drive the vehicle for approximately 25 km (15 mi) or until the transaxle reaches normal operating temperature of approximately 88°C (190°F).
  4. Turn the engine OFF.
  5. Inspect the suspected leak area and track the leak path through the powder to find the source of the leak.
  6. Make the necessary repairs to correct the leak.