Fuel pump relay - I believe my fuel pump relay is bad. . Asked by WHITE3281 Jul 19, 2017 at 11:02 AM about the 2004 Ford F-150 FX4 Ext. Cab 4WD . If it runs that usually means the problem is on control side of relay, voltage and ground. STARTING PROBLEM I have a 2000 ford f150 5.4L the truck cranks but will not . There is good fuel psi, just changed the fuel pump relay. the problem stop for a . 1987 - 1996 F150 - Fuel Pump Relay Problems - I'm in need of thoughts/ideas on what is going on with my fuel pump relay(green relay?, under . Other Fuel System Pump problem of the 2013 Ford F-150 1 The contact was informed that the fuel pump relay housing and cover rusted through, which . I have done much research on other people with this problem and it . I have checked the fuses and the and the fuel pump and ECM relays . 27 thg 4, 2010 - I've since replaced the fuel pump relay, fuel pump, and fuel filter and still can't get . Are you really sure that this is just a fuel delivery problem? .pump relay switch located on ' 91 ford f-150 there is a relay for the fuel pump beside the air filter on my 91 f150 4x4 4.9L i6 300 I am having having problems . 8 thg 1, 2016 - As the fuel pump relay controls power to the fuel pump, any faults with it can cause issues with the fuel pump, which can cause drivability .