Vacuum may pull in the fuel from the cold start valve after it opens but you still MUST have some fuel pressure to get the fuel to the valve. See if you get any fuel out of it with the fuel pump not running! You don't need full system pressure but you GOT to have SOMETHING!!!!!! David Teitelbaum vin 10757 --- In dmcnews@xxxxxxxxxxxxxxx, "content22207" <brobertson@...> wrote: > > Nope: It uses engine vacuum. > > The cold start valve works basically the same way carburetor venturi > work. A little dab of fuel, a little dab of engine vacuum, and you're > in the fuel delivery business. 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/