Conversation Between xjcamaro89 and liv2hunt

I just replaced the IWE solenoid on my 2005 fx4, but the sound is still there. It sounds like a playing card in the spokes of a bike tire... The strange thing is it only happens when it is cold(about 25 or less). When I put it in 4wd it stops immidately stops. If I take it out of 4wd it starts back within mile or so. What else should I check?? It makes no sense to me what it only happens when it is cold.....Any ideas? Thanks!