Cause:
High and/or low pressure in the solenoid modulator circuits may be caused by excess valve/bore wear. Wear at the inboard end causes excess feed pressure. Wear at outboard and midsection reduces solenoid modulator pressure. This loss has the most effect on engagements and boost oil for line pressure rise.
Correction:
The Sonnax wear-resistant sleeve and valve correct circuit pressure loss and restore control over solenoid modulator valve function.
Vehicles equipped with Aisin AW TR-60SN and and VW/Audi 09D transmissions may experience slippage in 4th, 5th or 6th Gear during steady driving. They also can experience slippage or shock on kickdown. These problems are caused by excess wear in the solenoid modulator valves, which results in improper solenoid pressures. Replacing the worn solenoid modulator valve or valves with Sonnax solenoid modulator valve kit will ensure the solenoids are fed the proper pressures, and will eliminate excess slippage and shock on kickdown.
Hardcoat anodized aluminum valve combats premature wear and features annual grooves for better centering in the bore
The valve sleeve is highly wear-resistant to increase life
This kit includes a new end plug and spring for proper calibration
Symptoms:
Cause:
High and/or low pressure in the solenoid modulator circuits may be caused by excess valve/bore wear. Wear at the inboard end causes excess feed pressure. Wear at outboard and midsection reduces solenoid modulator pressure. This loss has the most effect on engagements and boost oil for line pressure rise.
Correction:
The Sonnax wear-resistant sleeve and valve correct circuit pressure loss and restore control over solenoid modulator valve function.
Vehicles equipped with Aisin AW TR-60SN and and VW/Audi 09D transmissions may experience slippage in 4th, 5th or 6th Gear during steady driving. They also can experience slippage or shock on kickdown. These problems are caused by excess wear in the solenoid modulator valves, which results in improper solenoid pressures. Replacing the worn solenoid modulator valve or valves with Sonnax solenoid modulator valve kit will ensure the solenoids are fed the proper pressures, and will eliminate excess slippage and shock on kickdown.
Kit Contains:
SONNAX Installation Instructions