The peddles in my 2005 BA Futura seem to be sticking. Strangely, I have only ever got them to work twice. The only times they have worked, are when I have left the car idling to warm up on a cold morning, with the window down. Otherwise, every other time, they move about 1-2cm and that's it. I have tried WD-40, and that hasn't fixed the problem. Suggestions?