Forum Discussion

TurnThePage's avatar
TurnThePage
Explorer
Jan 24, 2015

Last Nail in the Coffin?

My '97 F150 has had its share of issues over the years. Starting last fall, if I use the keyfob to unlock the door, it gets stuck in a cycle of endlessly locking the door instead (click, click, click, click, etc). A smart slap to the door seems to correct that. At least momentarily.

Today, I went to start it (for the first time in a week or two) and found an EXTREMELY dead battery (2v). Hmmmm.. When I connect a charger, the horn starts blaring. What gives? I've disconnected the battery while I recharge it.

Why is the horn sounding when I connect the battery? Is this likely just the horn? Or is it rather something much more expensive?
  • Bird_Freak's avatar
    Bird_Freak
    Explorer II
    Jan 25, 2015
    Did your remote lock system go bad and drain the batt. Seen it happen before.
  • TurnThePage's avatar
    TurnThePage
    Explorer
    Jan 25, 2015
    edbehnke wrote:
    time to buy another truck
    The VERY moment I can convince she that wears the pants! :)
  • TurnThePage's avatar
    TurnThePage
    Explorer
    Jan 25, 2015
    Thoughts on what might suddenly drain a battery so quickly? I mean it was down to 2 volts. It's been no more than 2 weeks since I drove it last.
  • TurnThePage's avatar
    TurnThePage
    Explorer
    Jan 24, 2015
    Could be the case... I removed the horn relay and reconnected the battery. The headlights started flashing. When I started the truck, it started fine and the headlights quit flashing. Incidentally, the door lock started its click, click, click thing again, even though I used the key and not the fob. Suppose they are related? In the meantime, I'm adding one of those cheap Harbor Freight battery maintainers I had lying around. I'll monitor it a bit I guess. Maybe it's just time for a new battery. I obviously keep my vehicles way too long.
  • TNRIVERSIDE's avatar
    TNRIVERSIDE
    Explorer
    Jan 24, 2015
    donn0128 wrote:
    Security systems often do that when the hattery is dead and then connected to a charger or other 12 volt source.


    X2. I'm betting on the security system.
  • donn0128's avatar
    donn0128
    Explorer II
    Jan 24, 2015
    Security systems often do that when the hattery is dead and then connected to a charger or other 12 volt source.

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