Parasitic draw
Mountain Pass
Joined: Mar 2010
Posts: 224
Likes: 2
I drive mine back and forth to work (30 mile round trip) every day, and have had the same issue on Monday when leaving it sit over the weekend. Had to jump-start it once this winter...now I just try to start it up on Sunday and kick in the high idle for 15 or 20 minutes to harge things up, and it's ready for Monday every time that way.
Senior User
Joined: Oct 2010
Posts: 440
Likes: 0
From: Ft Worth
Do you have a system in it? In my Harley truck I found that my amps had a draw even with the truck off. I installed a relay that cuts the power to the amps after key off and haven't had any more issues. Just a thought.
Logistics Pro
Joined: Mar 2007
Posts: 4,604
Likes: 4
From: Claremore, OK
Did anyone ever figure out what was wrong with the truck in this thread? My '04 this morning acts like both batteries are dead....when I went to jump the truck off another vehicle; the arc at the terminals tells me something drained them. Since I've been up all night, I haven't started to check everything....but wanted to see if there might be something specific (besides the alternator) that I should check.
Posting Guru
Joined: Nov 2012
Posts: 2,123
Likes: 5
The problem is distinguishing between normal keep alive circuit draw and something else to check for. A good rule of thumb if it is in several full volts or amps you have an abnormal draw. Most keep alive circuits are in miliamps.
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F 250 6 liter
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Jul 18, 2010 08:13 PM
