C 1500 Truck 2WD V8-5.3L VIN T (1999)
Back Flush
1. Disconnect both hoses from the oil cooler lines and then connect them to the opposite oil cooler line. This will allow the oil cooler and lines to be
back flushed.
2. Repeat steps 3 and 4 on the Initial Flush Procedure.
3. Release the trigger on the J 35944 and allow water only to rinse the oil cooler and lines for one minute.
4. Turn OFF the water supply at the faucet.
5. Attach the air supply to the valve on the J 35944 and blow out the water from the oil cooler and lines. Continue until no water comes out of the
discharge hose.
Flow Check
1. Disconnect both hoses from the oil cooler lines. Connect the oil cooler feed line to the transmission and the return line to the discharge hose. Refer
to Transmission Specifications. Clip the discharge hose onto the empty oil drain container.
2. Confirm the transmission is filled with automatic transmission fluid, Refer to Specifications for the correct automatic transmission fluid capacity.
3. Start the engine with the transmission in PARK range and run for 30 seconds. A minimum of 1.9 L (2 quarts) must be discharged during this 30
second fun time.
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If fluid flow is greater than 1.9 L (2 quarts) in 30 seconds, go to step 7.
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If fluid flow is less than 1.9 L (2 quarts) in 30 seconds, perform the following diagnosis:
4. Disconnect the oil cooler feed line at the radiator.
5. Connect the discharge hose to the cooler feed line. Clip the discharge hose onto the empty oil drain container.
6. Start the engine with the transmission in PARK and run for 30 seconds. A minimum of 1.9 L (2 quarts) must discharge during the 30 second run
time. Do the following according to flow rate:
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Insufficient feed flow: Inspect the transmission.
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Sufficient feed flow: Inspect the cooler return line and the cooler.
7. Remove the discharge hose, reconnect the cooler feed and return lines to the transmission and refill the unit to the proper fluid level Refer to
specifications for the correct automatic transmission capacity.
