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1989 740 Automatic w/Overdrive 700 1989

posted by  jmarhal on  Thu Oct 3 08:17 CST 2002
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I can be driving down the road minding my own business when all of a sudden, the transmission will come out of overdrive (o/d) and the little yellow arrow will pop on.
I'll play with the o/d button on the sifter to no avail. When I come to a stop, and play with the o/d button a few times, the arrow light will turn off and I am back in overdrive. Anything serious?








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    1989 740 Automatic w/Overdrive 700 1989

    posted by  someone claiming to be KL on  Fri Oct 4 11:50 CST 2002 [RELATED]

    I had a similar problem that was fixed for maybe $35 a few years ago.








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    1989 740 Automatic w/Overdrive 700 1989

    posted by  Aye Roll on  Thu Oct 3 11:37 CST 2002
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    last visit: Tue Oct 14 21:08 CST 2014
    [RELATED]

    Your OD relay is either going bad (P/N 3523804, $30-40) or it's simply loose in the fusebox socket. My 88 does this occasionally. It's the tall relay all the way up front on the right. A couple wiggles to re-seat it in the sockets and all is well. If yours is original, it might be time to replace it anyway. Keep the old one as a spare. Sometimes just plugging/unplugging it will clean up a dirty contact enough to work.
    Remove ashtray, lighter, 2 screws, coin tray, pull relay straight up.
    Don't pay anyone to install it, its easy and all you need is a phillips screwdriver.
    --
    Rob Bareiss, New London, CT 86 244, 87 244, 88 744







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