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Why does my '98 shift hard and not all the time ?

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Old Apr 6, 2007 | 06:38 PM
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Default Why does my '98 shift hard and not all the time ?

I bought this '98 Bonneville SLE a few months ago and now have 114,000 on it.
I've already changed the upper intake & lower intake gaskets.
New plugs and just had the trans. flushed and filter changed.

It seems to shift hard between 1st and 2nd and not all the time.
It did this before the trans. service. and now after ?

Why ?
Does anyone know ?
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