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Home >> Cadillac >> 2000 >> Catera >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Servicing - A/T >> Lubrication >> Transmission & Oil Cooler Flow Check >> Flow Check
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Flow Check

  1. Disconnect both hoses from the oil cooler pipes. Connect the oil cooler feed pipe (front connector) to the transmission and the return pipe (rear connector) to the discharge hose (5). See Figure . Clip the discharge hose (5) onto the empty oil drain container.
  2. Confirm the transmission is filled with ATF. See CHECKING FLUID LEVELS  .
  3. Start the engine with the transmission in Park range and run for 30 seconds. A minimum of 2 qts. (1.9L) must be discharged during this 30 second run time. If fluid flow is greater than 2 qts. (1.9L) in 30 seconds, go to next step. If fluid flow is less than 2 qts. (1.9L) in 30 seconds, perform the following diagnosis:
    • Disconnect the oil cooler feed line at the radiator.
    • Connect the discharge hose (5) to the cooler feed line. Clip the discharge hose (5) to the empty oil drain container. Start the engine with the transmission in PARK range and run for 30 seconds. A minimum of 2 qts. (1.9L) must be discharged during this 30 second run time. If feed flow is insufficient, inspect the transmission. If feed flow is sufficient, inspect the oil cooler return pipe and the oil cooler and auxiliary cooler, if equipped.
  4. Remove the discharge hose (5), reconnect the cooler feed and return pipes to the transmission and refill the unit to the proper fluid level. Inspect the transmission oil cooler pipe connections at the radiator, the auxiliary cooler (if equipped) and the transmission for leaks.