389 wipers moving really slow

Discussion in 'Peterbilt Forum' started by krazzyboi_44, May 13, 2021.

  1. krazzyboi_44

    krazzyboi_44 Light Load Member

    292
    38
    Apr 30, 2008
    BAton Rouge,Louisiana
    0
    I have a 2016 389 and whenever I turn the wipers on they're moving very slow even on the fastest setting. How can I diagnose the problem? And had anyone else had this problem?
     
    bzinger Thanks this.
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  3. bzinger

    bzinger Road Train Member

    12,860
    41,843
    Dec 10, 2014
    omaha , ne
    0
    Had the same issue on my 13 cascadia, it got slower and slower over time , wiper moter was just tired and put a new one on ...problem solved .
     
    mitrucker Thanks this.
  4. Arctic_fox

    Arctic_fox Medium Load Member

    595
    1,618
    Sep 16, 2016
    0
    Yup its likely a wiper motor. They tend to need to be replaced every few years and are pretty cheap. I think the last one i got was $120 installed.
     
  5. believe456

    believe456 Light Load Member

    167
    21
    Apr 22, 2015
    0
    How do you replace them? I took the motor screws out but it’s on the link still
     
  6. dirtyrabbit

    dirtyrabbit Medium Load Member

    403
    149
    Jun 19, 2011
    KS
    0
    Just changed the wiper motor on my Jeep. . Looked at the one on this 16 389, and it seems to be the same.
    $130 at AutoZone.
     
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