L/U ctrl plunger  OS A750 / A760E / A761

L/U ctrl plunger OS A750 / A760E / A761 Lockup Control Valve Plunger Valve Plunger Sleeve Symptoms: Harsh downshifts Overheated fluid RPM surge on coast TCC apply & release concerns TCC codes Cause: Wear at the lockup control valve results in the converter remaining applied and transferring shift shock. Loss of lube pressure and control timing also results in RPM fluctuation. Correction: The Sonnax oversized lockup control plunger valve and sleeve kit corrects lost lube pressure and control timing issues caused by a worn OE plunger valve and sleeve. Required tool: F-147741-TL16