I turned engine on and it just revved 3times as if someone had stepped on the gas and gave it a lot of gas. I turned it off immediately and haven't moved it since. Thank God it was on "P" parked otherwise it would have gone through the garage wall.
What could this be? Please help. I don't want to move it now afraid that it will do this while driving. By the way the gas pedal was not stuck, I hadn't even stepped on the gas pedal.
This is the first time this happens.