On Mon, February 6, 2006 4:07 pm, david.clement@verizon.net wrote:
>
> When running my 99 Dakota on the hiway at 70ish mph and the cruise control
> the
> lock-up torque convertor will un-lock for a fraction of a second every once
> in
> awhile. It only seemed to happen when the cruise was on and I figured it was
> one of those things that was on the ragged edge and the computer didn't know
> what to do.
>
> Well over the week end there was some traffic on the hiway so I wasn't using
> the cruise and noticed that if I hit a good bump in the road (expansion joint
> or the like) it would drop out then too.
>
> It's only for a fraction of a second and the rpm will jump maybe a 150rpm
> before it locks back up.
>
> Besides looking for a loose connection anyone have any hits on what it might
> be? There are no codes and the tranny shifts fine otherwise and is full of
> ATF+4.
That happened to me after my trans build. The kickdown cable needs to be
adjusted. Where the throttle sits on the highway is causing line pressures
to be elevated, and small throttle adjustments are enough to cause it to
unlock in preperation to shift.
At least that's what my problem was....
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