sticking accelerator on 2004 Ford Explorer Sport Trac

has happened 3 times in the last 8 months..twice was an almost disaster..when slowing for a stop...the engine rev's up and severe pressure is needed on the brakes...causing the tires to spin... and putting the truck in park made the engine settle down . We have removed the floor mat to make sure it was not hindering the foot feed...but it has happened again...

2 answers
Intake air throttle plate could be dirty and needs cleaning. This is not a exspensive service and you should get your car checked asap.
agree with miles, don't put this off your life could depend on it