A/T - Oil Cooler Flush Procedure
2007 Service BulletinsInformation IB07-05-S003
Issue Date: APRIL 2007
Automatic Transmission Oil Cooler Flush And Flow Test Tool J-45096
Transflow(R)
Affected Vehicles
All Isuzu Vehicles equipped with 4L30-E/4L60-E/Aisin Transmission Service Information
The Kent Moore J 45096 transmission oil cooling system flush and flow test tool is available through Kent Moore at (800) 345-2233.
J 45096 is a self-contained unit utilizing a 12-volt flow meter, shop air supply and specified automatic transmission fluid (ATF). In the flush mode, transmission fluid is cycled through the transmission oil cooling system. High-pressure air is automatically injected into the fluid stream adding agitation to the ATF oil to enhance the removal of contaminated ATF oil and debris. In the flow mode, an electronic flow meter is used to measure the flow capability of the ATF oil cooling system. A digital display indicates the ATF oil flow rate in gallons per minute (GPM) along with the amount of ATF oil in the supply vessel, supply vessel ATF oil temperature, machine cycles and the operating mode.
The supply oil vessel has 30L (32 qt) capacity and the waste oil vessel has 32L (34 qt) capacity. The waste oil vessel is constructed of a translucent composite material that allows the user to easily identify the oil level. The waste oil vessel can accommodate vacuum evacuation and gravity draining.
Current cooler line adapters are used to connect the J 45096 to the automatic transmission oil cooler lines that allows J 45096 to adapt to Isuzu vehicles.
NOTE:
Insufficient oil flow through the ATF oil cooling system will cause premature transmission failure. The required minimum ATF oil flow rate reading is directly related to the supply oil temperature. Refer to the flow rate reference chart for the oil flow rate specification based on the temperature of the ATF in the supply vessel.
IMPORTANT:
The temperature of the supply vessel oil must be 18°C (65°F) or greater for J 45096 to operate. It is recommended to store the J 45096 in an area of the dealership where the room temperature remains at or above 18°C (65°F) when not in use. Do not attempt to increase the fluid temperature in the TransFlow(R) machine with an engine oil dipstick, or any other immersion type heater. The TransFlow(R) machine has a check valve in the supply reservoir, inserting a heater will damage the check valve and the subsequent repair expense would be dealer's responsibility.
Vehicle Inspection
Inspect the transmission/transaxle oil cooler (T.O.C.) lines for damage or kinks that COULD cause restricted oil flow. Repair as needed.
Set Up
Refer to TransFlow Operational Manual for further information.
1. Drain the waste oil vessel.
2. Turn the main power switch to the OFF position.
3. Turn the function switch to the "Idle" position.
4. Connect the machine to a 12-volt power source (vehicle battery).
5. Turn the main power switch to the ON position.
6. According to vehicle transmission application, fill the supply vessel with DEXRON(R) III, or DEXRON� VI, or SCS Automatic Transmission fluid through the fill port.
7. Install and tighten the fill cap.
8. Connect shop air supply.
Flush / Flow Test Procedure
1. Follow the machine set up procedure.
2. Obtain the supply fluid temperature from the machine display in "Idle" (The supply oil temperature must be greater than 18�C (65�F), or the machine will not operate).
3. Refer to the Quick Reference Card or Operator's Manual to determine the transmission oil cooler (T.O.C.) type and T.O.C. MINIMUM flow rate specification.
4. Record on the hard copy of the Repair Order, the T.O.C. MINIMUM flow rate and supply fluid temperature for future reference.
5. Connect the supply (black) and waste (clear) hoses to the transmission oil cooler lines, at the transmission not the radiator, in the reverse flow (back flush) direction. Refer to the table above for T.O.C. flow direction. Use appropriate adapters as required.
6. Turn the Function Switch to "Flush". Allow the machine to operate for 30 seconds. (Dirty oil may be seen as it is flushed out through the clear hose.)
7. Turn the Function Switch to "Idle".
8. Reverse the supply and waste hoses on the cooler lines to the normal flow direction. Refer to the above table.
9. Turn the Function Switch to "Flush" and allow the machine to operate for 30 seconds. Again, dirty oil may be visible in the clear hose.
10. Turn the Function Switch to "Flow" and allow the oil to flow for 15 seconds. Observe and record the tested flow rate on the hard copy of the repair order.
11. Refer to the MINIMUM flow rate and temperature information you recorded in Step 4.
12. Compare the tested flow rate to the MINIMUM flow rate specification.
^ If the tested flow rate is equal to or GREATER than the MINIMUM flow rate, go to Step 14.
^ If the tested flow rate is LESS than the MINIMUM flow rate, repeat Steps 5 through 12. If the tested flow rate is LESS than the MINIMUM flow rate after the second test, go to Step 13.
13. Turn the Function Switch to "Code." Record the tested flow rate, temperature, cycle and flow code information on the repair order.
A. Replace the T.O.C. after replacing the T.O.C., continue with the next step to validate the flow rate of the new T.O.C.
B. Reconnect the supply and waste hoses to the cooler lines in the normal flow direction. Go back to Step 10.
14. Turn the Function Switch to "Code." Record the tested flow rate, temperature, cycle and flow code information on the repair order.
15. Turn the Function Switch to "Idle" and allow the supply vessel pressure to dissipate.
16. Turn the main power switch to OFF.
NOTE:
Flow rates are only applicable to the Kent Moore J 45096 transmission oil cooling system flush and flow test tool.
Modifying J 35944-200 Adapter
A new longer pilot 9.525 mm (0.375 in) automatic transmission oil cooler line went into production on some 2005 model year vehicles.
The new cooler line will not fit into the existing J 35944-200 adapter that is used with J 45096 Transmission Oil Cooler Flush and Flow Test tool. In the 2006 model year, all applications using the 9.525 mm (3/8 in) transmission oil cooler line will have the new, longer pilot cooler line.
First Design Cooler Line with Shorter Pilot.
Second Design Cooler Line with Longer Pilot
A new adapter J 35944-200-A with a deeper opening can be purchased from Kent-Moore Customer Service but will not be shipped essential.
J 35944-200 Adapter Modification
J 35944-200 can be modified to allow it to work on both the first design and second design cooler lines.
1. Remove the O-ring seal from the J 35944-200.
NOTE:
Use care not to drill deeper than 9.525 mm (0.375 in). Drilling deeper than 9.525 mm (0.375 in) may damage the fitting. Use care to drill straight through the fitting. Drilling the fitting on an angle may damage the fitting.
2. A piece of rubber hose will work well for the drill bit depth stop. Place the rubber hose over the drill bit that allows an additional 9.525 mm (0.375 in) drill depth. This will keep the drill bit from drilling deeper than desired. Mark a 9.525 mm (0.375 in) drill bit to a depth that will drill the opening 9.525 mm (3/8 in) deeper.
3. Drill fitting J 35944-200 9.525 mm (0.375 in) deeper using a 9.525 mm (0.375 in) drill bit.
4. Clean out any metal shavings from the fitting using shop air and a rag.
5. Re-install the O-ring seal. A new O-ring (Kent Moore P/N 11439) is available from Kent-Moore.
6. Customer Service if needed.
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