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96' 850 Turbo flashing transmission arrow 850

posted by  dandonnell on  Tue Feb 14 18:19 CST 2017
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Ok, my daughter saI'd the car would hardly move this morning. When I got home I noticed the transmission arrow was flashing and I know this can cause or behave as though it was in winter mode. I corrected this a few months back when. I replaced the ignition switch which fixed severàl dash light problems. I got to thinking about maybe the key is so worn and not making proper contact interally. I took the key out and rotated 180 aND the arrow went away. I switched the key again to see if I could reproduce the problem but couldn't after several tries. Anyone had key wear cause this problem? Also while turning the key slowly there is a loud relay noise under center console, fuel pump relay? Should it make this much noise?








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    96' 850 Turbo flashing transmission arrow 850

    posted by  sherm on  Fri Mar 17 21:54 CST 2017
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    last visit: Mon Oct 6 20:34 CST 2014
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    My 850T did the same thing last summer. I needed new transmission shift solenoids. $1000 job at great tranny shop in DC area. It's an awful DIY job.
    --
    The Family Fleet: 90 745; 96 855T; 99 XC. nearing 900,000, thanks BB and M1








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    96' 850 Turbo flashing transmission arrow 850

    posted by  KlausC on  Wed Feb 15 10:24 CST 2017
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    last visit: Fri Oct 24 10:15 CST 2014
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    Turning the key upside down has nothing to do with any problems. The lock cylinder being 'loose' doesn't have anything to do with any problems.

    The electrical portion of the ignition can be a problem as it does eventually wear out.

    The flashing arrow is usually caused by a failing PNP switch. Replacement is documented all over the WWW. One of the temporary 'fixes' is to row the shifter from R to L about 20 times. The movement causes the contacts to self clean a little and turns off the flashing arrow. It will come back and eventually the PNP switch has to be replaced.

    The PNP is located in the engine compartment under the air cleaner, on top of the transmission.
    --
    Keeping it running is better than buying new







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