Cardone Select 82-129 New Window Lift Motor 100% Load Tested for guaranteed performance every time. Designed with extra torque motors which prevents premature failure. Gears are redesigned with a stronger, less brittle material which eliminates the main mode of failure. Magnets deliver the right amount of torque needed to withstand extreme weather conditions. Inoperable Intermittent or erratic operation Reduced torque or speed Grinding noise Binding or frozen Bounce back at full close on express-up windows The anti-pinch safety feature prevents the window glass from reaching the end of its upward travel when the system senses an obstacle in the path of the glass. A motor equipped with an anti-pinch safety feature typically has 5 or more terminals or pins as well as an express-up feature on the window switch.