For 1990-2009 cars

### Preparation

#### Tools Required

• | J 35944-A Transmission Oil Cooler Flusher

• | J 35944-22 Cooler Flushing Fluid

• | J 35944-200 Cooler Flushing Adapters

Notice: Whenever you remove the transmission for service, you must perform the automatic transmission oil cooler flushing procedure in order to remove the existing fluid which may be contaminated. This will prevent contamination of the new fluid. You must perform the flushing procedure after the installation of the overhauled or replacement transmission.

Notice: Only use J 35944-20 Cooler Flushing Fluid with the J 35944-A Oil Cooler and Line Flusher. Use of any other fluid can result in damage to the tool, damage to the automatic transmission oil cooler components, or improper flushing of the cooler. Do not reconnect the oil cooler pipes after you reinstall the overhauled or service replacement transmission in the vehicle.

1. Remove the fill cap onJ 35944-A and fill the can with 0.6 liter (20 -21ounces) J 35944-22 . Do not over fill.

Notice: Shop air supply must be equipped with a water/oil filter and not exceed 825 kPa (120 psi), or personal injury may result.

2. Install the fill cap onJ 35944-A and pressurize the flusher can using the shop air supply to 550-700 kPa (80-100 psi).
3. Connect the J 35944-A discharge hose to the oil cooler return (top fitting). Use J 35944-200 if required.
4. Clip the discharge hose onto the oil drain container.
5. AttachJ 35944-A to the undercarriage of the vehicle with the hook provided and connect the hose from J 35944-A to the feed (bottom fitting) oil cooler pipe. Use J 35944-200 if required.
6. Turn ON the water supply at the faucet.

### Initial Flushing

Notice: If water does not flow through the oil cooler (system is completely plugged), do not continue the flushing procedure, or damage to the tool or components could result. Turn the water OFF immediately. Inspect the pipes and the cooler for restrictions. Replace the oil pipe(s) and/or the oil cooler.

1. Turn the water valve on J 35944-A to the ON position and allow the water to flow through the oil cooler and pipes for 10 seconds to remove any remaining transmission fluid. If water does not flow through the oil cooler and pipes, the cause of the blockage must be diagnosed and the plugged component must be repaired or replaced. Continue with the cooler flushing and flow check procedure once the blockage is corrected.
2. Turn the water valve on J 35944-A to the OFF position and clip the discharge hose onto a five gallon pail with a lid. If there is no lid, place a shop towel over the end of the hose in order to prevent splash.
3. Turn the water valve on the J 35944-A to the ON position and depress the trigger to mix the cooler flushing solution into the water flow. Use the clip provided on the handle to hold the trigger down. The discharge will foam vigorously when the solution is introduced into the water stream.
4. Flush the oil cooler and pipes with water and solution for two minutes. During this flush, attach the air supply to the air valve located on J 35944-A for 3 to 5 seconds at the end of every 15-20 second interval to create a surging action.
5. Release the trigger and turn the water valve on J 35944-A to the OFF position.

### Backflush

• | Disconnect both hoses from the oil cooler pipes and then connect them to the opposite oil cooler pipe. This will allow the oil cooler and pipes to be back flushed.

• | Repeat step 3 and 4 of the INITIAL FLUSH procedure.

• | Release the trigger of J 35944-A and allow water only to rinse the oil cooler and pipes for one minute.

• | Turn the water valve on J 35944-A to the OFF position and turn OFF the water supply at the faucet.

• | Attach the air supply to the air valve on J 35944-A and blow out the water from the oil cooler and pipes. Continue until no water comes out of the discharge hose.

### Flow Check

1. Disconnect both hoses from the oil cooler pipes. Connect the oil cooler feed pipe to the transmission and the return pipe to the discharge hose (bottom fitting). Clip the discharge hose onto the empty oil drain container.
2. Confirm the transmission is filled with automatic transmission fluid. Refer to Fluid Capacity for the correct automatic transmission fluid capacity.
3. Start the engine with the transmission in PARK and run the engine for thirty seconds. A minimum of 2 quarts (1.9 L) must be discharged during this thirty second run time. If fluid flow is greater than two quarts in thirty seconds, perform the following diagnosis:

3.1. | Disconnect the oil cooler feed line at the radiator.

3.2. | Connect the discharge hose to the cooler feed line.

3.3. | Clip the discharge hose onto the empty oil drain container.

3.4. | Start the engine with the transmission in PARK and run the engine for thirty seconds. A minimum of two quarts (1.9 L) must be discharged during this thirty second run time. Do the following according to the flow rate:

• | Insufficient feed flow: Inspect the transmission

• | Sufficient feed flow: Inspect the oil cooler return pipe and the oil cooler.

4. Remove the discharge hose, 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, and transmission for leaks.

### Clean-up

1. Disconnect the water supply hose from J 35944-A and bleed any remaining air pressure from the can.
2. Remove the fill cap from J 35944-A and return any unused flushing solution to its container. Rinse J 35944-A with water. Do not store J 35944-A with flushing solution in it.
3. After every third use, clean J 35944-A as described in the instructions included with the tool.
4. Dispose of any waste water/solution/transmission fluid in accordance with local regulations.