[quote:ed21424b5b="ExplorerGirl94"]Electrical problem
1994 Ford Explorer 4 cyl Four Wheel Drive Automatic 140535 miles
My truck had problems starting a few months ago and when it finally did it cut out on my about 15 mins later after driving it around the corner from my house. So i got it towed back to my house. Turns out the fuel pump wasnt working so we changed the fuel pump but it still wouldnt start.The E.E.C fuse blows everytime i hook up the battery.The new fuel pump is fine , i changed out the eec relay and the fuel relay and the fuse is still blowning. Please help if at all possible can you tell me where to get a diagram of the wiring layout for my truck so i can see if there is a wire thats not grounded somewhere.[/quote:ed21424b5b]
If the fuse keeps blowing, you probably have a short to ground in the power dircuit. You can make a few checks here. Start by pulling the EEC power relay. See if the fuse still blows. If it does, you have a problem in the power distribution box. If not, you need to check the 12-volt supply wire for shorting to ground. This is a RED wire that goes through the EEC system to provide power to the injectors, HEGO sensors, and some of the actuators. Disconnect the 60-pin connector at the EEV processor, and check for short to ground at pins #1, #37, and #57.
You can get a halfway decent diagram in the Haynes manual for your car, or in the Ford Electrical and Vacuum troubleshooting manual. The Haynes manual is easier to get, and a lot less expensive. You can get the Ford manual from places like eBay.
May 30, 2009 at 5:09 AM
