1993 Ford Explorer Q&A

1993 Ford Explorer Question: a whiring/whining noise coming from underneath

The Noise Just started this morning it occurs when the car is in nuetral or in first with the clutch engaged, I have been having issues with fuel economy, smelling gas, and a low/loping idle speed could this be connected? Helped the fuel economy by using fuel injector cleaner and the highest quality gas and will -
Answer 1
could be pilot bearing is dry and or t.o.bearing is going bad -