16637321 Power Door Lock Actuator Motor Front Left Driver Side for 931208 fits Chevrolet 200099 Door Lock Latch FL for GMC 200099 Door Lock Actuator General Motors

FITS THE FOLLOWING VEHICLES: Chevrolet Door Lock Actuators 2000 1999 GMC Door Lock Actuators 2000 1999 REPLACES PART: 16637321 931-208 931208 Focus on customer service is priority one, call us for your OEM needs! 1.What is the Door Lock Actuator all about?  A door lock actuator is the component in electronic door locks that is responsible for locking and unlocking the vehicle’s doors. When a button is pressed to lock or unlock a door, the door lock switch triggers the actuator. A small motor in the actuator then triggers a series of gears. The final gear is connected to a rack and pinion set of gears, which converts the rotational motion of the motor into the vertical motion necessary to lock or unlock the door. 2.What common symptoms indicate you may need to replace the Door Lock Actuator? Doors won’t lock. Doors won’t unlock. Doors will only lock or unlock sporadically. Doors make an unusual noise while locking or unlocking. Car alarm goes off randomly. 3.How important is this service? A door lock actuator is responsible for locking and unlocking your doors. When the door lock switch is triggered, the actuator’s motor powers a set of gears that lock or unlock your door. When the actuator stops working, there is no communication between the door lock switch and the door locks, and you’ll be unable to lock or unlock the door.