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Rear wiper anomaly

Discussion in '4th Gen 4Runners (2003-2009)' started by gwreno, Jan 19, 2019.

  1. Jan 19, 2019 at 2:29 PM
    #1
    gwreno

    gwreno [OP] New Member

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    I am having an issue with my rear wiper. When I get into the car after it has been sitting for more than just a few hours (such as overnight), when I turn the key to start the engine, the rear wiper does a single oscillation, then parks. It doesn't do it again, as in multiple starts doing errands, it only seems to do this if the car has been parked for many hours. Any ideas? Some sort of proximity switch close to being out of adjustment?
     
  2. Jan 20, 2019 at 7:21 AM
    #2
    SlvrSlug

    SlvrSlug New Member

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    San Diego, Ca.
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    Slightly modded
    I have had funny stuff like that happen when the battery is getting ready to crap out, just a thought.
     
  3. Jan 20, 2019 at 11:34 AM
    #3
    gwreno

    gwreno [OP] New Member

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    Interesting theory. There is no other evidence of a bad battery, but I can see the thought process.
     
  4. Jan 20, 2019 at 12:59 PM
    #4
    gwreno

    gwreno [OP] New Member

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    As another thought, has anybody replaced a rear wiper assembly on a 2008? It may be that there is a control module incorporated into that assembly that might have a problem. I would imagine it would its "brains" would be integral to the entire module (sans wiper arm), but I wouldn't tackle the job unless good information on how to do it is out there.
     
  5. Jan 21, 2019 at 1:00 PM
    #5
    doxidad

    doxidad New Member

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    Tom
    NE Ohio
    Vehicle:
    2017 TRD ORP MGM W/KDSS
    N-Fab Nerf Bars, interior LEDs, RAV blind spot mirrors, Nox Lux blackout kit, kicker dash speakers,XnenonDepot LED Pro Highs/Lows +DRL
    In case you need to replace the assembly.
    I haven't replaced the assembly, but I have replaced the wiper arm on an 04 - I assume it would be the same for 08. It's plastic with a metal insert and with enough use and ice the arm cracked around the metal insert. The only reason why I am mentioning this is that if you replace the assembly you probably will have to replace the wiper arm. I'm also assuming that you will crack it when you remove it. The arm is forced onto the shaft and the shaft is splined so after you align it when you tighten down the nut is forces it on the splined shaft. You probably would also need the nut that goes on the end of the shaft - is has a built in washer and is serrated on the washer side to lock it on. I think I have a spare nut if you need one.

    Just a heads up.
     

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