Question about 2003 Ford Windstar

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Excessive battery drain when all is switched off

FORD, WINDSTAR, 2003. With all equipment switched off, engine off, key out of the ignition, engine hot or cold, all courtesy lights off, "battery save" fuse pulled, there is a battery drain of 600 mA. I have pulled all fuses one by one, one at a time, and can not reduce this significantly. Certain combinations of relays/fuses can bring it down to about 450 mA but this is still way to much. Plan to pull the connector to 1) the alternator, 2) electric module, 3) power train control module. Any other suggestions? THX

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  • gamma428 Jun 02, 2009

    to fuzzysocks:

    excess battery drain is not caused by battery. battery is good.

  • gamma428 Jun 02, 2009

    to fuzzysocks:

    battery is good. What should a typical battery drain be. I understand that the computer has to stay "alive" but that should be a current in the 1 to 10 mA range, not 600mA.

  • Moe May 11, 2010

    Do you have a battery problem? Need to know what is occuring before diagnostic can be suggested.



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I have a 2003 ford windstar that had both battery drain and flickering dome lights and solved both. The battery drain believe it or not was the radio which is factory. This was the only fuse that i didn't pull(trying too narrow my drain) because it didn't look like a fuse.... it looks like a square block and it took a pair of needle nose pliers to get it out. Once i got it out it initially raised the amp pull, but then i waited the 30 minutes for the computor go to sleep or into hibernative mode the amp dropped off to next to nothing.... below what factory spec said it should the flickering dome lights.... it turned out to be a wiring culprit in the headliner above the support post behind the passenger sliding door.... i re-wrapped it and haven't seen a flicker since. Oh and one other thing i would like to add, we thought my transmission had gone up about a year ago.... even the dealer said i needed a new tranny, but after talking to a couple of mechanics i was convinced to replace the torque converter and i was back on the road driving. The symtom was that it just stopped! We drove to the store fine and came back out to go home and it started fine but would not move. I hope all this info helps many who are struggling out there!!

Posted on Aug 01, 2009

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Ford windstar is a very problematic car.

Please disconnect the stereo and see what happens because most of the time that is what drains the power from the battery.

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Posted on May 26, 2009


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