My 86 has the same problems. If you figure out the fix, please let me know! I've done the trick 'CarterMan' mentioned to get them down and it works (so I know it's not the motors on mine). Also, If I'm not mistaken, I believe the circuit breakers are the same for the windows and locks, so if you suspect the CB's you can switch them around. I think mine is the relay, but I haven't messed with it, too busy trying to get this truck running right.