Product Details

Symptoms:

• TCC apply & release concerns.
• Overheated transmission & converter
• Loss of cooler flow
• Loss of lube oil
• Burnt converter.
• High TCC slip RPM.
• Code P0218
• Code P0741

Cause:

Loss of oil pressure due to worn components in critical oil circuits.

Correction:

Zip Kit seals critical pressure losses. Drop-in parts install quickly and easily.

Sonnax TCC Zip Kit 8L45-8L90-TCC-ZIP targets the root cause of multiple converter-related complaints by sealing the critical circuit pressure losses in the GM 8L45 and 8L90 valve body. The kit contains uniquely designed parts to prevent the loss of pressures within the lube, converter limit, line pressure and converter apply circuits. These solutions target wear that results in lube-, cooler- and converter-related complaints. No special tools are required for installing these parts.

The Zip Kit quick guide provides clear and easy instructions on one sheet to get the unit sealed up and back on the road fast. In addition to general rebuilding tips and technical information, the technical booklet included in this kit contains vacuum testing information and locations at other key areas of the valve body.

• Drop-in Zip Valve^™ parts install quickly and easily, no reaming or special tools required.
• Uniquely designed parts address root causes of converter and lube related complaints by sealing critical pressure circuits.
• Detailed technical booklet included with in-depth rebuild and inspection tips for comprehensive valve body repair.

Kit Contents:

• O-Ringed End Plug Kit
• Converter Feed Limit Valve Kit
• Pressure Regulator & Shuttle Valve Kit
• TCC Clutch Control Valve, Seal & Spring