Question about 1992 Buick LeSabre

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1992 buick LeSabre transmission troubleshooting!

91,000 miles, filter and fluid are fine, modulator replaced, vacuum hard lines clear of obstruction, no vacuum leaks period, and been told 1qt overfull is OK by trans shop. now when approaching a stop, brakes applied,then release brake, ease into throttle and trans momentarily acts like it is in neutral then clunks into 1st. 1st to 2nd , 2nd to 3rd, and 3rd to OD is fine, I am baffled since it doesnt do it all the time. electronic? internal leak? HELP!

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  • impalamanks Mar 03, 2009

    sweet! thanks for the help. I know this is gonna cost me for this repair but.... much cheaper than a new ride appreciate your time...

  • i2mrose Apr 13, 2009

    My 92 Buick LeSabre will not move when it is cold. I can move the shifter D or R, but it is like it is in neutral. After about 5 min of warming up the car will move but for the first 15 min. whenever I come to a stop or almost stop it is like I am in neutral again. But once it warms up the car is fine.

    If the pump pressure drops to zero, what does that mean??
    What needs fixing??





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92 Buick lesabre 97000 miles, on slow acceleration, @ 40mph going into 4th gear there is a mild chutter, same @ 50mph going into OD mild chutter and when down shifting from OD to 4th. All is when slow acceleration. When I say slow acceleration, I mean I drive like a older senior citizen when everyone behind me is annoyed I don't just donor and go. When I do romp to accelerate quicker, there is no chutter at all. Fluid is good and at perfect level. Any ideas? Great car just wondering the scoop is

Posted on Dec 23, 2011

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It's not electronic, It's a hydraulic problem, you need to drive it with a pressure gauge on the line pressure port to see if the pump pressure is dropping to zero at stop signs.

Posted on Mar 01, 2009

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