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Would someone please explain the purpose of the of the idler pulley.
While cleaning under the hood and checking things out I noticed that the belt was not even making contact with the idler pulley and i am sure that it has been this way for a long time with no issues at all.
The belt seems to have the right tension and has never squeaked or made any noises. I am curious as to why the belt ended up like this and if there are issues in leaving it like this.
Is it possible you are watching the main drive belt and seeing the idler of the a/c system? If its the idler between the crank damper and power steering pump pully, you got me! Id like to see a picture or video of that!