Cooler Bypass Valve

Cooler Bypass Valve





Material

Removal
1. If not done previously, carry out the transmission fluid cooler flow test procedure.





2. Remove the fluid cooler tube from the front cooler line case fitting.





3. Remove the fluid cooler tube from the rear cooler line case fitting.





4. NOTE: The two rubber-coated sealing washers can fall out when removing the cooler line case fitting.

Remove and discard the front cooler line case fitting and the two rubber-coated sealing washers.





5. NOTE: The two rubber-coated sealing washers can fall out when removing the cooler line case fitting.

Remove and discard the rear cooler line case fitting and the two rubber-coated sealing washers.
6. Remove the Cooler Bypass Valve (CBV) assembly from the transmission.

Installation





1. CAUTION: Failure to correctly install the new rubber-coated sealing washers will result in transmission fluid leaks.

Install the new rubber-coated sealing washers and the new cooler line case fittings.
1 Install one rubber-coated sealing washer on each cooler line case fitting.
2 Install both cooler line case fittings into the CBV assembly fittings.
3 Install one rubber-coated sealing washer on each cooler line case fitting.





2. CAUTION: Damage will occur to the rubber-coated sealing washers and transmission fluid will leak if the cooler line case fitting are over-tightened.

NOTE: Align the rubber-coated sealing washers while installing CBV assembly on the transmission case.

Install the CBV assembly.





3. Install the fluid cooler tubes in the front and rear cooler line case fittings.

4. CAUTION: Do not use any fluid approved for MERCON (R) V application. Using a fluid rated for MERCON (R) V may cause internal damage in MERCON (R) only applications.

Fill the transmission with the specified type and quantity of transmission fluid.
5. Check for leaks.