He needs a VENTED gas cap. Or just drill an 1/8" hole in the top of his present one. Ron ----- Original Message ----- From: <cpaviper@xxxxxxxxxxx> To: <Chrysler300@xxxxxxxxxxxxxxx> Sent: Monday, August 27, 2012 11:18 PM Subject: [Chrysler300] 'Negative' gas tank pressure Was at a local cruise-in this evening, and visiting with fellow 300F owner, Frank Troost. Frank mentioned a problem he had last Sunday with his '57 Adventurer coupe. He said the engine seemed starving for fuel, the glass bowl fuel filter wasn't filling with gas, and when he un screwed the gas cap, there was a huge 'whoosh' of air into the tank, and fuel flowed to the engine. His fuel pump now seems inoperable. Does this sound like a gas tank venting issue? I read the archived emails on 'positive' gas tank pressure, but this is the opposite problem. Thanks, Noel Hastalis Burr Ridge, IL 300F [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 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/