I just bought a 2003 Jeep Wrangler with the 4.0L inline 6 engine as a weekend toy. The engine is making an odd whine that sounds like a pulley whine, but it's a little odd. It isn't belt squeal and the belt looks great, but the whine is almost like how a power steering pump sounds when it is just starting to have issues. BUT....the sound is decently loud at idle, but when the A/C clutch kicks on....the sound completely disappears. When I turn the steering wheel and make the power steering work, the sound disappears. It's almost as if any time a part puts some resistance on the pulley system, the whine goes away.
Any clues as to could what it could be?
Any clues as to could what it could be?