C3 71 Wiper door problem is back and worse!

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  • Mark C.
    Expired
    • March 1, 1993
    • 10

    #1

    C3 71 Wiper door problem is back and worse!

    When I first removed the screw from the vent hose the door worked properly, then it went back the way it was before, opening momentarily then closing. So today I got the new parts and put them on. The filter, check valve, and the actuator valve/plunger that the arm hits when the wipers go home...if they go home. Seems they won't go all the way down without me pushing them. Now the door stays open all the time, even when I push the arm down to the switch. I went back and put the old actuator valve on, door still stays open. Now what. Have I just compounded the problem, moved it elsewhere to a weak link ie a leak somewhere?
  • Pat M.
    Extremely Frequent Poster
    • April 1, 2006
    • 1557

    #2
    Re: C3 71 Wiper door problem is back and worse!

    Hi Mark. I'm not sure why your wipers suddenly won't park correctly. Electrical problem in the wiper motor?

    As to your vacuum problem, sounds like you still have a leak somewhere. Use a remote car to supply vacuum and listen for leaks. Check the wiper relay near the firewall, and the wiper solenoid screwed to the bottom of the Tach.

    Also check the rubber seal that slides over the plunger in the large, main wiper actuator that actually opens the wiper door. Sometimes they tear or become dislodged and cause leaks.

    Good luck. Patrick Moresi #45581

    Comment

    • Denny J.
      Very Frequent User
      • November 1, 2000
      • 244

      #3
      Re: C3 71 Wiper door problem is back and worse!

      Mark
      Put the new parts back on.
      I'm thinking the vacum tank line,But let me try to redo the same thing to my car to night.I also have a 6 page paper on fixing the wipers/head lights and can send it to you free E mail off line with your address if you want.Denny72 or fax

      Comment

      • Mark C.
        Expired
        • March 1, 1993
        • 10

        #4
        Re: C3 71 Wiper door problem is back and worse!

        Sounds great Denny, thanks to all! My email is macguard9194-vette@yahoo.com

        Comment

        • Tom S.
          Extremely Frequent Poster
          • March 1, 2004
          • 1087

          #5
          Re: C3 71 Wiper door problem is back and worse!

          Are you sure you don't have the lines on the canister crossed? I bought a 69 and had problems with the wipers and that was waht I found after looking at everything else.

          Comment

          • Mark C.
            Expired
            • March 1, 1993
            • 10

            #6
            Re: C3 71 Wiper door problem is back and worse!

            yeah, i need to go back to the basics and check all the connections, map them out and see if they are in the right spot. thanks!

            Comment

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