Honda/Acura models equipped with a 4-speed, 3-shaft and 5-speed transmission may overheat the converter. Insufficient flow to the TCC release circuit at low RPM allows the lockup piston to drag on the cover, generating heat. This heat glazes the TCC lining and overheats the fluid. Eventually the slip rate cannot be controlled due to lining failure resulting in code P0740. To prevent this problem, Sonnax offers a drop-in converter charge regulated pressure regulator valve 98892-04K. This valve allows more flow to the converter and cooler circuits, increasing converter charge during low pump output conditions, and includes an internal checkball to prevent converter drain back when the vehicle is off. The same valve design will assist converter charge and TCC apply pressure during low-output/high-load demand situations.

Make sure to inspect and replace lockup control valve endplugs with Sonnax O-ringed end plug kit 98892-01K to help ensure maximum TCC apply pressure.

• Maintains adequate converter charge and cooler flow at low RPM
• Checkball inside valve prevents converter drain back when vehicle is shut off
• Drop-in Zip Valve™ installs quickly and easily