This 2004 Ford F250 with a 5.4 liter gas engine came in with the complaint that the engine would occasionally stall. Testing found a code P0231 stored which indicates a problem with voltage to the fuel pump. Studying a wiring diagram showed several things. Number one is that when the fuel pump relay is engaged … Continue reading “2004 Ford F250 5.4 Liter, Engine Stalls, Code P0231”
This 1988 Ford F250 Came in with the complaint that the battery would go dead while sitting overnight. As soon as the truck was dropped off I checked the alternator and confirmed that it was not charging properly. It had excessive ac ripple voltage. This would not explain the battery going dead overnight but it … Continue reading “1988 Ford F250 Pickup, Battery Goes Dead While Parked”
This 2002 Ford F250 came in with the complaint that the turn signals did not work at the trailer pigtail connector. The turns signals on the truck worked okay. Well after examining a wiring diagram I found that fuse number 6 in the interior fuse box supplies power to the right and left, trailer tow … Continue reading “2002 Ford F250, No Trailer Turn Signals”
A 2003 Ford F250 Super Duty came in with the complaint that when fuse #44 in the underdash fuse block blows the gauges stop working. First I removed the lower dash cover, which is held in place by four quick release screws. Then I removed the fuse block cover and confirmed that fuse #44 was … Continue reading “2003 Ford F250 Super Duty Gauges Stopped Working And Fuse #44 Blows”