Cooler Bypass Valve

Cooler Bypass Valve





Material

Removal
1. With the vehicle in NEUTRAL position it on a hoist.





2. Remove the fluid cooler tubes from the cooler bypass valve (CBV) fitting.





3. NOTE: The two rubber coated sealing washers can fall out during removal of the front line case fitting.

Remove the cooler bypass valve (CBV) from the transmission case.
4. Disassemble and clean the CBV.

Installation





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

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





2. CAUTION: If the cooler line case fitting is over-tightened the rubber coated sealing washers and/or cooler line case fittings can be damaged, causing a transmission fluid leak.

NOTE: The CBV has a check ball in the rear fitting and will only allow flow in one direction. Make sure check ball moves freely.

NOTE: Align the two rubber coated sealing washers, while assembling the rear CBV fitting.

Install the CBV onto the transmission case.





3. Install the transmission fluid cooler tube nuts.
4. Fill the transmission to the specified level with clean automatic transmission fluid.