madden87 Posted February 7, 2009 Share Posted February 7, 2009 I have a summit 140gph fuel pump with a dead head regulator. I set the fuel pressure between 6-7 and it drops after driving for a while. Has anyone else had this problem? What do I need to do to fix it? Quote Link to comment Share on other sites More sharing options...
hoov100 Posted February 7, 2009 Share Posted February 7, 2009 is the pump getting hot? what are your amps coming from the alternator when its cold vs. when its warm? what voltage are you getting at the pump when its warm vs. cold? Quote Link to comment Share on other sites More sharing options...
ZZZeee Posted February 7, 2009 Share Posted February 7, 2009 Vapor lock? Quote Link to comment Share on other sites More sharing options...
madden87 Posted February 7, 2009 Author Share Posted February 7, 2009 I will check the voltages. Thanks. As far as vapor lock goes it could happen, but I ran the fuel line on the outside of the frame rails and up the firewall away from the headers. Any ideas on a different way to route them possibly? Quote Link to comment Share on other sites More sharing options...
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