David, What was the temperature out side? You do know that the radiator fans blow right back onto the gas tank which will also heat up the gas. That's why most people in the hot climates run my Hot air dam. John Hervey www.specialtauto.com -----Original Message----- From: dmcnews@xxxxxxxxxxxxxxx [mailto:dmcnews@xxxxxxxxxxxxxxx] On Behalf Of daviddlasvegas Sent: Saturday, August 04, 2007 10:42 PM To: dmcnews@xxxxxxxxxxxxxxx Subject: [DML] fuel pump / tank problem - Can anyone HELP??? Since having my fuel sending unit replaced, I've had a problem of my fuel pump vibrating and humming loudly. I thought the problem was heat related, but recently the problem started occuring in cooler weather too. Its now so bad that within 10 minutes of running the car, the fuel pump starts humming very loudly. What's odd is that the pressure balance in my fuel tank is screwed up. When you stop the engine and take the gas cap off a whosh of air gets sucked in. But tonight something different occured. I took the gas cap off after drivng the car for an hour and a steady stream of hot air/fuel vapors came out. It was *extremely hot*. It blew out in a stream (like when you blow thru a straw) for a complete 2 minutes. Later in the evening when I got home the pump was humming very loud, I took the gas cap off with the engine running and boom - like Old Faithful the gas gurgled up and spewed out the fill spout in a stream about 12-15" high. The entire hood of the car, windshield, and myself were covered in gasoline. Thank goodness there was no ignition source or I'd be a roman candle. I jumped in the car and shut the engine off. I had the guys at Delorean One replace the venting pipe and tubes which did not solve the problem (don't mind though since my original components were such a mess anyway). Does anyone have any idea as to what's going on? I'm getting fed up with this. I don't like messing around with fuel vapors and the fuel system for obvious reasons. To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/dmcnews/join (Yahoo! ID required) <*> To change settings via email: mailto:dmcnews-digest@xxxxxxxxxxxxxxx mailto:dmcnews-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/