Walt; I had the same problem this weekend. During the meeting of the ETDOC, at the very tail end of the trip, mine started making some noise. no problems running, just making noise, and only 1/4 tank low. The only thing I've found to combat it is to add cool gas to it. Go figure. Scott<br clear=all><hr>Get your FREE download of MSN Explorer at <a href="http://explorer.msn.com">http://explorer.msn.com</a><br></p> [Non-text portions of this message have been removed]