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Replaced radiator and now power windows don't work (89' GM 5.0L)!

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    #1

    Replaced radiator and now power windows don't work (89' GM 5.0L)!

    I replaced the radiator yesterday (89' GM 5.0L) and now my power windows won't work. The windows (Pass and 2 rear) won't go down from either the driver panel or the individual rear panels. I do not have a power window motor for the passenger front, so I couldn't try that. I did test the driver window motor (mostly because it was stuck down with rain in the area) -- I hot-wired it up, which shows that the motor works fine.

    I checked all the fuses, including #6 (20A), and did not find any blown fuses. Furthermore, nothing (to my knowledge) was not working -- power mirrors, locks, seats, autolamp, rear defrost, heat, etc all worked fine.

    Q:

    Is there a "hidden" fuse for the power window motors, besides fuse #6 (or any fuse in the block for that matter)? Maybe something like a 30A fuse for a Bosch-style relay?

    Would a bad switch in the driver's door cause all windows to stop working?

    Any way to test the switch in the door (that has all the window controls)?

    *Also, as a bonus question, what are those two fuses(?) (30A and 8.5 or 9.5A) that are silver...they're not a typical fuse. I didn't pull them out because I wasn't sure exactly what they were...


    Thanks for the help! She continues to run great even after 231k aside from a few minor problems!
    Tags: None
    #2
    Originally posted by formulabird428 View Post
    I replaced the radiator yesterday (89' GM 5.0L) and now my power windows won't work. The windows (Pass and 2 rear) won't go down from either the driver panel or the individual rear panels. I do not have a power window motor for the passenger front, so I couldn't try that. I did test the driver window motor (mostly because it was stuck down with rain in the area) -- I hot-wired it up, which shows that the motor works fine.

    I checked all the fuses, including #6 (20A), and did not find any blown fuses. Furthermore, nothing (to my knowledge) was not working -- power mirrors, locks, seats, autolamp, rear defrost, heat, etc all worked fine.

    Q:

    Is there a "hidden" fuse for the power window motors, besides fuse #6 (or any fuse in the block for that matter)? Maybe something like a 30A fuse for a Bosch-style relay?

    Would a bad switch in the driver's door cause all windows to stop working?

    Any way to test the switch in the door (that has all the window controls)?

    *Also, as a bonus question, what are those two fuses(?) (30A and 8.5 or 9.5A) that are silver...they're not a typical fuse. I didn't pull them out because I wasn't sure exactly what they were...


    Thanks for the help! She continues to run great even after 231k aside from a few minor problems!
    Yes, a bad master switch can cause the windows to not work, since that provides power and ground.

    There's a circuit breaker on the starter solenoid for the power windows.
    There's also a window safety relay somewhere in the passenger side kick panel.
    The silver things are circuit breakers.
    Last edited by 86VickyLX; 09-06-2011, 12:28 PM.

    Comment

      #3
      check the CB on the starter relay. Its the only one there. If it got dislodged or something, the windows won't work.
      86 Lincoln Town Car (Galactica).
      5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

      91 Lincoln Mark VII LSC grandpa spec white and cranberry

      1984 Lincoln Continental TurboDiesel - rolls coal

      Originally posted by phayzer5
      I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

      Everything looks like voodoo if you don't understand how it works

      Comment

        #4
        That CB is directly on the starter, correct?

        Comment

          #5
          Directly on the starter solenoid.
          ~David~

          My 1987 Crown Victoria Coupe: The Brown Blob
          My 2004 Mercedes Benz E320:The Benz

          Originally posted by ootdega
          My life is a long series of "nevermind" and "I guess not."

          Originally posted by DerekTheGreat
          But, that's just coming from me, this site's biggest pessimist. Best of luck

          Originally posted by gadget73
          my car starts and it has AC. Yours doesn't start and it has no AC. Seems obvious to me.



          ​

          Comment

            #6
            Checked the CB on the starter -- no luck. It has current passing through.

            Opened up the kicker panel, but couldn't make sense of what was going on. I did end up disconnecting one of the wires (yellow with blue stripe, same as coming from the CB near the starter solenoid), and it had current.

            So, either there is something fishy with that relay, or it's the switch. I'm not exactly sure how to tell which one is bad. Does anyone have a diagram/layout of the driver's power window switch?

            Comment

              #7
              anyone for a diagram of the power windows switch?

              Comment

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