01-19-2006, 11:06 AM
I have a 2000 GMC with automatic door locks that has just lately has not been locking on the passenger side only. It sounds like it clicks, but then nothing. I am afraid that it is the door lock actuator. I went by my local GMC dealer and the man there told me to take the door panel off and see if there was not anything else wrong. When I flip the lock switch from the drivers side it just buzzes and tries to move to the locked position, but then it flips back to unlock. Now from the outside I can not lock the door with my key. It seems as though the cylinder will not turn to lock it. I can turn the cylinder and unlock it. Has anyone had similar trouble? Can it be a rod linkage inside of the door. I just took my inside door panel off at lunch and hope to work on it more tonight.