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Thread: 2003 trannmission code

  1. #1
    Join Date
    Jun 2010
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    2003 trannmission code

    I received a code P1728 'transmission slip malfunction'. code this be a sensor issue? Also is the transmission in a 2003 Marauder the same as in a Crown Vic or Marquis?

  2. #2
    Join Date
    Feb 2017
    Location
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    ive never seen it but trans slip codes dont usually end well

    yes the vic and marquis trans is the same. The 03 & 04 marauder trans are easily interchangeable as well just need to update the oss teeth count and apply more 3-4 blip pressure for the 04 / 4r75w trans when used in an 03. That's the only two very minor tune adjustments.

  3. #3
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    Quote Originally Posted by decipha View Post
    ive never seen it but trans slip codes dont usually end well

    yes the vic and marquis trans is the same. The 03 & 04 marauder trans are easily interchangeable as well just need to update the oss teeth count and apply more 3-4 blip pressure for the 04 / 4r75w trans when used in an 03. That's the only two very minor tune adjustments.
    wrong.

    No grand marquis or civilian crown vic trans is the same.
    Only 01 02 03 P71 and I believe town car.
    Car-part.com lists plenty of long tailshaft marauder style trans
    The twins2.3 whipple/aluminatorVortech V-2 lots of goodies

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  4. #4
    Join Date
    Feb 2017
    Location
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    bryan is correct the tail shaft housing is shorter on the other trans

    but any aode/4r70w/4r75w trans out of any town car, marauder, mark viii, mach-1, crown vic, marquis, thunderbird, mustang, f-150 and e-250 w/ modular trans can very easily be swapped in but would require a slightly longer drive shaft if the trans has the short tail shaft housing.

    Other than updating the oss teeth count and applying more 3-4 blip pressure for the 04 / 4r75w trans when used in an 03 you would have to update the trans ratio if using an aode from a 91-95.

    as far as a direct swap in it would take a long tail shaft housing trans to keep the stock drive shaft length.

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