Batteries draining - Ford Powerstroke Diesel Forum
 
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post #1 of 5 Old 03-20-2011, 04:49 PM Thread Starter
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Batteries draining

i have an 08 f350 6.4 and about every two weeks the batteries go dead over night. they have checked for electrical drains and keep replaceing parts that are drawing to much they say the altenator is fine and the batteries are only about a year old. any ideas as to what it might be i love to drive my truck but it pisses me off when you go to drive it and it won't start
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post #2 of 5 Old 03-20-2011, 05:27 PM
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Do you park it in the garage? What kind of lights do you have if so? Also how often do you drive it?

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post #3 of 5 Old 03-20-2011, 05:42 PM Thread Starter
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i park it out side, drive it just about every day and factory lights
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post #4 of 5 Old 03-22-2011, 10:55 AM
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I had the same problem with my 08 F250. Batteries would drain if not driven every week. Truck has been on Road since March of 07 and had new batteries about 1 1/2 years ago. Had wife take it to the dealer. They checked alternator, current draw, and load tested batteries. Ended up needing 2 new batteries. Ford wouldn't warrany the motorcraft batteries without a receipt. Your batteries should have a 3 year replacement. Service advisor told her to drive the truck every 4-5 days so they dont die. Sounds like BS to me. Get the batteries load tested and see what they say. I live in Phoenix and the truck sits outside
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post #5 of 5 Old 03-22-2011, 12:45 PM
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I chased the same thing on my 6.0 for months. It would be fine for weeks, then overnight dead. One day I only parked it for 6 hours and it was to dead to start. Dealer had no idea because they could never duplicate it, and everything checked out right. I would check it every night for a draw when I shut it off and there never was. I would skip one night and it was dead the next morning. Really pissed me off... Change your alternator... Its the only thing, aside from the starter that can drain the batteries that fast. Unless you have some big amps or other aftermarket parts.

As far as trucks going dead after sitting for a while. My 6.4 will go dead after sitting in the shop for about 2-3 weeks. I leave it on a battery tender if it sits longer than a few days.

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Last edited by Ipkyss; 03-22-2011 at 12:51 PM.
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