Flow Test

Disconnect the hose from the oil cooler pipe. Connect the oil cooler feed pipe top connector to the transaxle for normal flow.
Clip the discharge hose (5) to an empty oil container. See Fig 1 .
Confirm the transaxle is filled with automatic transaxle fluid. See CHECKING FLUID LEVEL .
Start the engine with the transaxle in PARK range and run for 30 seconds after fluid begins to flow from the discharge hose (5). See Fig 1 . A minimum of 2 quarts (1.9L) must be discharged during this 30 second run time.
If the fluid flow meets or exceeds 2 quarts (1.9L) in 30 seconds, connect the oil cooler feed pipe to the front connector on the transaxle.
If fluid flow is less than 2 quarts (1.9L) in 30 seconds, perform the following diagnosis:
1. Disconnect the transaxle oil cooler and line flusher discharge hose (5) from the oil cooler return pipe. See Fig 1 .
2. Disconnect the oil cooler feed pipe at the radiator.
3. Connect the transaxle oil cooler and line flusher discharge hose (5) to the oil cooler feed pipe, radiator end. See Fig 1 .
4. Clip the discharge hose (5) onto the oil drain container. See Fig 1 .
5. Start the engine with the transaxle in PARK range and run for 30 seconds after fluid begins to flow from the discharge hose (5). See Fig 1 . A minimum of 2 quarts (1.9L) must be discharged during this 30 second run time.
If the amount of transaxle fluid flow remains less than 2 quarts (1.9L) in 30 seconds, inspect the oil cooler feed pipe, top connector, for restrictions or damage. If no condition is found with the feed pipe, inspect the transaxle.

Fig 1: Capturing Fluid Discharge

Courtesy of GENERAL MOTORS CORP.