Transmission Fluid Cooler - Flow Test

Transmission Fluid Cooler - Flow Test

Note: The transmission linkage/cable adjustment, fluid level and line pressure must be within specification before performing this test.

1. Remove fluid level indicator from fluid filler tube.
2. Place funnel in fluid filler tube.
3. Raise the vehicle on a hoist. Place suitable safety stands under the vehicle.
4. Remove the cooler return line (rear fitting) from the fitting on the transmission case.
5. Connect one end of a hose to the cooler return line and route other end of the hose up to a point where it can be inserted into the funnel at the fluid filler tube.
6. Remove the safety stands and lower the vehicle. Insert end of hose into the funnel.
7. Start the engine and run it at idle with the transmission in NEUTRAL position.
8. When fluid flowing from hose is in a steady stream, a liberal amount of fluid should be observed. "Liberal" is described as about 1 liter (11 quarts) delivered in 30 seconds. If a liberal flow is observed, the test is complete.
^ If the flow is not liberal, stop the engine. Disconnect the hose from the cooler return line and connect it to the converter outline fitting (front fitting) on the transmission case.

9. Repeat Steps 7 and 8.
^ If flow is now approximately 1 liter (1 quart) in 30 seconds, refer to Removal, Transmission in this section for cleaning and backflushing procedures.
^ If the flow is still not approximately 1 liter (1 quart) in 30 seconds, service the pump and/or torque converter.