I found my problem. The U-joints on the front axle were freezing up intermittently. I was on another forum, and apparently this is not uncommon with some 4wd vehicles. If your vehicle is 4wd (especially if it is a Ford truck), pull the u-joints and remove the caps. If there is no apparent wear or damage, grease them up good and reinstall. If there is any sign of wear, change them.
By the way, this "2carpros" forum is a joke. I will never use it again.
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Wednesday, May 5th, 2010 AT 8:41 AM