My 1933 Chrysler CO6 did exactly the same thing. After I bored a 1/8 inch hole in the flat bottom, it never did it again. The thread reminded me of my long distance trip in 1964 to Utah with my newly purchased 300F. It was running hot so my army buds and I stopped at a tiny Chrysler dealer in Nowhere, Nevada.The one car showroom dealer admitted to never having seen a ram engine in his life. When I asked him if he would remove the thermostat he checked his flat rate manual and said it would take 2 plus hours as he had to remove the a/c compressor to get at the devise and said I would have to pay his shop rate for 2.something hours. Asked how much per hour, he said $3.50. Eight dollars later the job was done and we forged on with no change in the heat guage. [Non-text portions of this message have been removed] ------------------------------------ To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx To unsubscribe from this group, send an email to bob@xxxxxxxxxxxxx or go to http://autos.groups.yahoo.com/group/Chrysler300/join and select the "Leave Group" button For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm For archives go to http://www.forwardlook.net/300-archive/search.htm#querylangYahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Chrysler300/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/Chrysler300/join (Yahoo! ID required) <*> To change settings via email: Chrysler300-digest@xxxxxxxxxxxxxxx Chrysler300-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: Chrysler300-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/