2009 - 2014 F-150

Wipers thumping the firewall

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Old May 11, 2015 | 11:08 PM
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Wipers thumping the firewall

Anyone else feel the wipers thump on their limits? I feel it through the pedals, more so on the brake pedal.

Anyone have a fix for it? Or know which years didn't do it?


Thanks
-Patrick aka Patman
 
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Old May 11, 2015 | 11:58 PM
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Hereford F150's Avatar
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I don't think I have noticed what you describe on my 13.
 
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Old May 12, 2015 | 09:54 AM
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Rest you foot on the brake pedal and turn the wipers on.

If you haven't noticed it yet, after I point it out and you tune into it, it will drive you bonkers
 
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Old May 12, 2015 | 08:49 PM
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I have a noise from my passenger side wiper. think its from blade falling down causing metal part hitting window. Only happens when its coming up or at end of downside.
 
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Old May 12, 2015 | 11:17 PM
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This is a distinct thud felt in the brake pedal when the wipers change direction from up to down, or down to up.
 
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Old May 13, 2015 | 09:09 AM
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I would take the wiper off the drivers side arm, attach a rag to the end of the arm and leave it up. Turn on the wipers and see if you still feel it. If it is internal on the mechanism it might be fun to access to make any adjustments. If it is external like the wiper is hitting something when it returns you might be able to get the arm off and re-position to the next spline on the shaft. But who knows.
 
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Old May 13, 2015 | 09:44 AM
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No its in the linkage itself. I've heard of friends trucks that have the issue too, just curious how many others can feel it or have noticed it
 
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Old May 13, 2015 | 12:08 PM
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it is probably just the vibrations transmitting through the dash to the brake pedal... might be normal.

You can check under the hood to see if there is mechanical interference with the linkage but I bet you won't find any.

You could also check the wiper bolts... maybe the motor is getting loose and thats causing more vibrations?

Of course, the easiest fix is just to take your foot off the brake pedal and not worry about it! (or install a brake light relay to disable your wipers when you push the brake pedal!)
 
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Old May 13, 2015 | 02:02 PM
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I have noticed the same with mine too. My 2010 also did it. It's one of those things that as soon as you notice it, you always know it's there.
 
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Old May 13, 2015 | 04:23 PM
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Originally Posted by mkosu04
(or install a brake light relay to disable your wipers when you push the brake pedal!)
Seems like a really dangerous suggestion
 
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Old May 13, 2015 | 05:34 PM
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My guess is the wiper motor and brake pedal hanger mount close to each other. If that's the case about the only fix would be to use isolation mounts for the wiper motor or learn to deal with it.
 
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Old May 13, 2015 | 06:19 PM
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I know exactly what you're talking about. Mine does it too. I just try to ignore it.
 
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Old May 13, 2015 | 08:36 PM
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Mine do it on my '07.
 
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Old May 13, 2015 | 10:12 PM
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My 2011 did this, but my 2014 doesn't??
 
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Old May 14, 2015 | 12:32 AM
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Yeah, I can feel the wipers thru the brake pedal too.. I'm in WA State, so the wipers are on a lot..

Mitch
 
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