this is serious, scared my wife to death and got my attention, she said she had no idea what to do if she had been driving, i turn the switch off and restarted the truck and it was still stuck.. and i do not have any floor mats in the truck to get stuck under the pedal and the return spring is working fine,,only on half throttle and more does it stick.....please help i dont want to add more return springs unless i have too..please help