It was raining pretty hard here in San Diego today for the first time in a while, so I cranked my wipers up. While I was waiting at a light I felt my brake pedal start to pulsate, freaked the hell out of me, I finally noticed that the pedal would pulse each time the wipers changed directions. Is this normal??? How/why are the brakes and wipers even connected???

 

WTF??? I think that's coincidence.....probably brake pulsated because ABS was activated when you were braking..
Ed

 

Wipers going at high speeds I think would have some energy at the transition point from the up to down stroke (the turnaround).

Maybe it's because the brake pedal braket is(pretty sure) part of the firewall/unibody and the wiper motors are mounted on the same firewall pretty close. Perhaps this "shaking" back and forth effect is being felt

 

Nope thats what I thought at first but I feel it when my car is standing STILL. I just tried it with my car sitting in my garage just to be sure. Its not really a shaking I guess, but I definitely feel thump whenever the wipers go back and forth. Could someone else try this so I could know if theres something wrong with my car?

 

No your not nutz!!!
I noticed it today (Friggin new york rain ) I was a stop light once -- and another time I think I was braking and first I was like uh-oh, warped rotors -- no wait its only doing it when the wipers flick on (had em on Interval)
so anyhow, yeah, my TL does it to

 

lol, ok thanks Tommy, glad to know I'm not the only one I don't understand it but it doesn't seemt to be causing any problems so oh well.

 

Hey -- so -- if u have INTERVAL on -- and the adjustment dial set to minimum interval -- u still have some slight delay dont' you??

Mine just go on continuously