2003 Ford Expedition battery drain
 

Good day,
I have a continuous battery drain. I replace the Alternator,the battery, the belt, and belt tension. The drain still occurring; does anyonehave a solution, had the same problem can direct me in the right direction?

Thank you

Some relay is sticking on.

If on wet, snowy, salty days if I don't turn off my climate control switch fan switch sometimes when I return to my 1997 Expedition the darn fans, front and rear, are both running with the key pulled. Most of the time on high speed...bad relay or short. Doesn't do that when dry. Get the volt meter out and go circuit hunting.

Additionally it is far easier to 'get voltage out of a battery then to put it in'. Clean tight good wire connections to the battery?

skip.

unplug the rear wiper motor...I've had that happen on 2 separate expedition