Oil Light Problem
 

Hi guys a couple of days ago I played in mud for a little bit and well the motor and the monty got all mudded. I cleaned it and now it is giving me some problems. The oil light is turning on when I take out my foot from the gas pedal and back off when I pedal it again. It has engine and transmission oil so I believe it must be the sensor with the problem. Also it has a terrible soung coming from the motor that sounds like a fan shaft having trouble rotating or may be the alternator o maybe both. What do you recommend me to do?