Shift Modulator: Service and Repair

1. Raise and support vehicle.
2. Remove vacuum line from modulator.
3. Using vacuum modulator wrench J-23100 remove modulator, seal and modulator plunger.
4. Then remove modulator valve and sleeve.
5. Clean all parts with soapy water and air dry.
6. Check modulator and vacuum line for kinks, cracks and dry rot damage.
7. Reverse procedure to install using new seal. Add transmission fluid as necessary.