I hear a fan running when my ignition is off and it's killing my battery what is the cause of this problem?

Joshua Tholen

Asked by Nov 20, 2015 at 03:40 PM about the 2000 Ford F-150 XLT 4WD Extended Cab SB

Question type: Maintenance & Repair

3 Answers


That is probably the engine cooling fan. It should shut off after a couple of minutes but if it does not it would run your battery down. Is your battery weak or does the fan keep running?

1 out of 1 people think this is helpful.

What F_O_R said all so check the coolant fan relay,may be stuck.


If your electric fan is running your battery down you may already have a problem with your battery taking or receiving a charge.

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