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Home >> Buick >> 1991 >> Reatta 2D Convertible >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Overhaul & Testing - 4T60 >> Testing >> Road Test >> Notes

Road Test: Notes

NOTE: Before road testing vehicle, engine and transmission must be at operating temperature. Torque converter clutch will not engage if engine coolant has not reached operating temperature.