The accelerator on my 92 ford explorer is stuck. I can't get it to stop

If the pedal itself is stuck at the floor or not at it's top position, you could have a throttle body or throttle linkage concern -- or it could be getting stuck on any floor mat you may have on the driver's floor. If the pedal is at the normal position, but it idles high and won't come down -- you could have a vacuum leak at the engine, an idle control valve issue, an intake air leak, or other concern in that area. Have the vehicle tested to determine the cause of your concern.