Question about 1988 Mercury Grand Marquis

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Passenger front power window don't work

Does it have its own moter ?

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Yes it has its own motor. take the door panle off and it will be right there. you can test it by unpluging it then run jumper wires from the motor to any 12 volt battery. if the motor runs then you will know that the problem is in the switch.

Posted on Apr 21, 2013

  • bill davis Apr 21, 2013

    how does the panel come off?

  • bill davis Apr 26, 2013

    got panel off and motor works with jumper, but not by either switch.Do you think problem is in master switch


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Yes, each window has its own motor. If you can hear a motor run when you try to run the window up/ down but it does not move, it might be the window gear. Ford used what is called a tri-ball to connect the window motor to the window regulator. These are notorious for going out and are not too hard to change, you will just need to drill out the rivets that hold the regulator to the door frame and the large rivets and rivet gun to re-attach everything when done. If it is not something you want to tackle yourself your local body shop should be able to fix you up, they usually have the large rivet gun for re-attaching outer door handles which most mechanical repair shops don't have.

Posted on Apr 21, 2013


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See Figures 1 and 2

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Fig. Fig. 1: Location of the front door window regulator-1995 vehicle shown

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Fig. Fig. 2: Exploded view of the rear door window regulator-1995 vehicle shown

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