Please Help!!! Dead Batt in 2 hours! - Ford Powerstroke Diesel Forum
 
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post #1 of 5 Old 08-15-2010, 05:48 PM Thread Starter
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Please Help!!! Dead Batt in 2 hours!

99 PSD 7.3 all stock. I drove the pickup on friday, went to drive on sat afternoon dead batteries. Took alternator in to have tested, tested good. replaced 3 year old batteries installed them. Started fine and went for a drive got home let sit for 2 hours completely dead batteries again. Please help me!
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post #2 of 5 Old 08-17-2010, 02:02 PM
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strange. i had the same problem today.

the batteries were replaced 4 days ago. alternator tested fine (according to parts store) before and after batteries were changed.

replaced the alternator this morning and the batteries are now fully charged.

if you have a multimeter test each battery and then isolate the alternator to test for a charge.

hth.
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post #3 of 5 Old 08-17-2010, 03:58 PM
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Check for a good charging voltage at your batteries. Just because your alt. is charging doesn't mean it's getting the power to your batteries (bad cable or connection). Also check for an amperage draw with the truck off and the key out of the ignition to see if something is draining them.

03 F-250 7.3L, Sport, 4x4, Auto
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post #4 of 5 Old 10-11-2010, 08:23 AM Thread Starter
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I ended up taking in to the Ford garage and within an hour it was fixed. Glow plug relay shorted out. Something simple and it got me!
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post #5 of 5 Old 10-11-2010, 10:24 AM
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Gps will drain batteries faster than anything on the truck. Glad you got the problem fixed.

12/98 E-99 CC Long Box 4WD Dually Lariat, Banks IC/Wastegate/6-Gun........Heated/Cooled Cupholders
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