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EricFromCT
EricFromCT, Ford Technician
Category: Ford
Satisfied Customers: 3697
Experience:  20 years dealership exp., ASE A1-A9 L1 L2, Ford Lincoln Mercury Senior Master, Diesel Certified
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Something is draining the battery dead. have replaced 3

Customer Question

something is draining the battery dead . have replaced 3 batterys in 3 months . new alternator, but had to take battery with warranty back , when they checked battery said it was dead each time.
JA: Did you test the battery with a voltmeter? And have you ever changed one before?
Customer: yes.
JA: What is the model/year of your Ford?
Customer: 2001 ranger . it,s my dads with about 140,000 miles.
JA: Are you fixing your Ranger yourself? What have you tried so far?
Customer: yes . we put in new alternator. but after a couple days , battery dead again.
JA: Anything else you want the mechanic to know before I connect you?
Customer: there seems to be something draining battery dead fast.
Submitted: 7 months ago.
Category: Ford
Expert:  EricFromCT replied 7 months ago.

Hi. The most common cause for battery drain is from the audio unit. I have some some modules, including the instrument cluster cause a drain too. But what I would recommend is accessing the radio and disconnecting it and see if the drain goes away. I do not recommend just pulling the audio fuse at this point because it does control other items.

Expert:  EricFromCT replied 7 months ago.

Let me know if removing the radio is something you can do or if you need instructions on that. Thanks.