Car Shuddering When Shifting From Second to Third Gear: Causes, Diagnosis, and Fixes
A shudder specifically during the second-to-third gear shift is most commonly caused by torque converter clutch engagement on automatic transmissions, which the ECU commands at approximately 25 to 45 mph in many vehicles, though a worn third-gear clutch pack, a faulty shift solenoid, and engine misfires that coincide with this speed range are all capable […]