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Parasitic Draw Identified - Now What?

Old 12-05-2018, 05:46 PM
Junior Member
Thread Starter
Join Date: Dec 2018
Posts: 1
Default Parasitic Draw Identified - Now What?

Hello, friends. I recently bought a 2004 E-250. I discovered that it has a a parasitic draw issue -- if it sat more than a few days it would not start.

Using the troubleshooting tactics detailed on Youtube (
) I identified the culprit as fuse #22 in the passenger fuse panel (under the steering wheel). According to a fuse diagram for my particular vehicle and year ( that fuse is responsible for "Memory power radio, Rear seat video control unit, Battery saver relay, Instrument cluster, Courtesy lamp relay, Accessory delay relay".

My question for you -- someone who likely has a much greater grasp on vehicle mechanics -- is, what's the next step? Could I just pull the fuse and leave it out to eliminate the parasitic draw issue? I don't mind if I don't have a radio or an overhead light and there is no video unit in the vehicle. But might the other stated uses of that fuse -- "Battery saver relay ... Instrument cluster ... Accessory delay relay" -- be critical?

I should note, when the fuse is reinserted a clicking, mechanical sound is audible. Thanks in advance for your input!
Old 12-06-2018, 05:10 PM
Senior Member
Join Date: Jun 2010
Posts: 9,077

Something you might check,
Look behind the fuse panel for any excess rust or moisture. Some models had a moisture intrusion problem from a leaking windshield.If that is evident you may need to remove the GEM (Generic Electronic Module) and clean it to remove any moisture or corrosion.
Old 12-24-2018, 12:11 PM
Join Date: Jul 2018
Posts: 84

I agree with hanky, I had a water problem but thought it was the plug in the floor... I think I will check it out.. 07..4.6..f150 STX..
Old 12-24-2018, 05:11 PM
Senior Member
Join Date: Jun 2010
Posts: 9,077

Can you help us out with , as best as you can, where does the clicking sound seem to be originating?

By the way, F150-07-4.6 thanks for the support, and Merry Christmas !
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