spamTHISbrp@yahoo.com wrote:
> On Jun 30, 10:16 pm, Carl 1 Lucky Texan <alcky...@swbell.not> wrote:
>
>>David wrote:
>>
>>>Our Outback H-6 with automatic trans is jerking when shifting down
>>>from D to 3 under certain circumstances. We have been travelling in
>>>Colorado and New Mexico. I have been driving on the Interstates in
>>>those states at or slightly above the speed limits (70 in CO and 75 in
>>>New Mexico).
>>
>>>If the Outback is on cruise control or I give it enough gas to keep
>>>the speed up while going up steeper hills, the trans will shift from D
>>>to 3 in the 70+ MPH range. When it does if the hill is fairly steep,
>>>there is a nasty jerk when the shift is made. If I shift down
>>>manually or if I take it out of cruise control and let it slow down
>>>then there is no jerk. It seems to me that the auto trans is not
>>>reducing engine RPM's during the shift down.
>>
>>>We bought this car a year ago and I never noticed the problem before.
>>>But I never drove at this speed in a hilly/mountainous area before
>>>either (we live in South Carolina).
>>
>>>Is there an adjustment that can be made to the auto trans to fix this
>>>problem?
>>
>>I have lived with the EXACT, PRECISE problem since the car was new. I
>>have complained a coupla times and they say they cannot duplicate the
>>problem. It sometimes jerks so hard it is disconcerting. It CAN'T be
>>good for the drive train. Duplication is gonna require setting the
>>cruise at 75+ and either going up a grade steep enough to force a
>>downshift or, using the foot to simulate - what? - a 50% pedal
>>depression? It occasionally will work smoothly, but it SEEMS to only be
>>smooth with a solid flooring of the pedal. The CC seems to use less tha
>>full throttle - that may be key top troubleshooting - dunno. You can see
>>the lockup come off - that is good for about 120-180 rpm increase - then
>>it completely disengages - revs to maybe 5500 or so, then SLAMS back
>>down to 4K/w'ever in 3rd.
>>
>>Being a flatlander - I can see it may be tricky to find the right
>>stretch of road to attempt duplication, but surely some dealerships in
>>mountain country have dealt with this?
>>
>>thanx for posting - I just returned from a D/FW to Vegas round trip and
>>suffered this issue multiple times
>>
>>Carl
>>
>>--
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>
>
>
> '03 LL bean H6, exact same problem here. Bought the car used with
> 55Kmiles on it.
>
> The only respite I've found is to reset the computer (I left the
> parking lights on), relief lasts 2-3 weeks.
>
> I had reset the computer previously and it had no effect, then I
> drained the battery down and it had no juice for 8-10 hours, and the
> jerkiness went away for 2-3 weeks.
>
> So, disconnect the battery and leave the parking lights switch on
> overnight (leave a closed path in the 12V circuit) and see if you get
> the same results I did.
>
> When playing around with this, I've noticed no jerk if I downshift
> manually 4-3.
>
>
> Dave

thanx - good suggestion

Carl


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