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Slow shift in Automatic Transmission 850 1993

posted by  Volvo Newborn on  Fri Oct 3 03:13 CST 2003
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last visit: Sun Jul 12 08:42 CST 2009
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Can anyone tell my why my tranny is slow to shift into overdrive after climbing a hill or after an extended period of acceleration? Thanks in advance for any help.








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    Slow shift in Automatic Transmission 850 1993

    posted by  james_a_sousa on  Fri Oct 3 14:38 CST 2003
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    last visit: Thu Oct 23 18:51 CST 2014
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    If your transmission fluid is good and you cannot find (or hear of) a cause, it could be that the transmission is intelligent enough to sense that you might still be on a grade that would cause a downshift.

    This would be a situation similar to pulling a trailer which causes Volvo to reccomend staying out of overdrive.

    There is a series of longish hills on the way to UMass Amherst that would cause my 740's transmission to shift in and out of overdrive. After a couple of episodes, I would hold the overdrive off or keep the revs down to avoid this situation because, fully loaded, I did not think that the shifty behavior was good for the transmission.
    --
    96 855R, 95 855,854, 90 744 Ti - 325,000 miles driven








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    Slow shift in Automatic Transmission 850 1993

    posted by  impala on  Fri Oct 3 04:42 CST 2003
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    your tranny is probably due for a reseal job , when its hot usually the old seal are unable to do what they are supposed to do ,so you got a loss of pressure inside the transmission , maybe you can check the color and odor of your tranny oil ,,, well its just my opinion







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