2002 Ford Explorer CANT KEEP SYSTEM CHARGED

Tiny
TOOLPUSHER1961
  • MEMBER
  • 2002 FORD EXPLORER
Electrical problem
2002 Ford Explorer V8 Two Wheel Drive Automatic

I have a 2002 ford explorer, I have replaced the alternator twice and I have changed the battery twice and the system will drain and go dead within 2 to 4 hours could this be caused by the security system. I can jump it off and everything works fine, but when you kill the vehicle it drains the battery.
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Sunday, August 1st, 2010 AT 6:30 PM

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Tiny
EDWARD.S
  • MEMBER
Hi, Verify that the alternator is charging, put a dvom meter across the battery terminals, put meter on dc volts, 20 volt scale, at idle should be about 14.2 volts. If that's good turn off car, disconnect positive battery terminal, from battery put your dvom meter on 20 amps scale. Place one Lead from meter on the positive Post Of the battery, Place the other lead On the positive cable. Disconnect The under hood light. With the meter Hooked up, You Should Have a Reading Of No Higher Then 0.2 amps. Anything higher is a draw. Now Open the Door, the draw Will go Up. It can take as long as twenty minutes For everything to go To sleep. Check The Glove box, That it closes Properly. And the light Is not staying on. If ok, Next Make sure Doors Are Closed and dome light is out. Start removing Fuses One at a time. Put each Fuse Back in It location One at a time. Each time You remove a fuse, Make Sure The Door Is shut. And look at the meter for a drop in amperage.
Remove Power To the Alarm, And see If That is Causing your draw.A Draw can be difficult to find sometimes. If You can't find it, Then you need to take it to a electrical Shop.

Hope This Helps You,
Good Luck
Edward S.
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Sunday, August 1st, 2010 AT 7:03 PM

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