Having problems with your 2003 Ford Explorer ?
Replace alternator in ford explorer 2003 - 2003 Ford Explorer
Not a big deal,first relieve the belt tension by raising the tensioner using a 5/8 wrench[probably locked to a bigger wrench for leverage],and takeing the belt off the alternator pulley.You need to then take the 13mm bolts from the bottom and the one from the top of the alternator and it's of the truck.All this being done after the negative cable was removed from the battery.Next is to unplug the plugs to the alternator and take off the main cable useing a 10mm socket.Good luck!
Repair Help & Product Troubleshooting for 2003 Ford Explorer
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