GP Starter Problem

Hi,

I am having a problem with the starter in my 94 GP 3.1. Sometimes when I try turn the engine over all I hear is a single "click" noise and the starter does not spin at all. Sometimes it will take 3-4 attempts before it will actually turn and start the engine.

I had this problem before and figured it was a problem with the starter, so I replaced it with an old starter from a 3.1 at the junkyard. The one I have now has worked fine, but recently it has started to do it more and more.

Is this a problem with the starter? or is it something else?

Thanks in advance for any help.