My 2003 Ford Crown Victoria came with adjustable gas and brake pedals. There is a button on the dashboard to move the two pedals (together) toward or away from the driver. When I push the button in either direction, the pedals clunk. I can feel them trying to move but can’t. When I put my foot on the pedals when I push the button, it feels like there is something like a stop blocking the pedals from moving, so there is a clunk. Since the pedals are trying to move, it can’t be a fuse or relay problem.
What could be wrong with this? I have never had a car with adjustable pedals and never had to fix them.