• Inadequate lubrication
• TCC apply & release complaints
• TCC codes

A sticking lockup relay control sleeve prevents TCC apply or release. Sleeve wear reduces converter pressure, overheating the fluid, and results in bushing and solenoid failure.

The tightly toleranced, drop-in replacement Sonnax valve and sleeve assembly restores proper hydraulic clearances, provides greater valve support, and uses upgraded materialsto prevent wear.

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