my 93 rmw is a bit noisy at idle. As far as I can tell, the noise seems to be coming from the mechanical fan. (tow pack) The noise sounds somewhat like a loose belt - doesn't seem to be the issue, nor the alternator. It doesn't make the noise in neutral, just drive. As soon as you accelerate are moving, it stops.
I do recall that when i did a coolant flush on my other wagon, the book said to make sure the mechanical fan stays upright when removed as it had something to do with the oil inside the fan housing?
Has anyone else had this problem and is there a procedure to changing/filling the fan's oil?
I was going to look it up in my shop manual but I have misplaced it.