I had this happen on my '02 SC2, it was the transmission control module.

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marx404
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"Bob Shuman" > wrote in message
news
> If it slams into all gears, then check out the shift modulation solenoid.
> If it is only one gear, then check that shift solenoid. The resistance of
> the solenoids can be measured at the connector on the top of the
> transmission access cover. If I recall correctly, they should all (there
> are 5 of them, so there are 10 connections) measure between 4 and 8 ohms.
> If they all measure correctly (one will usually be way different - open or
> shorted for instance), then try draining and then replacing the trans
> fluid and adding some trans additive and following directions on the
> can/bottle. When done, Make sure that you drain the fluid again and also
> replace the filter at that time too. Use the correct fluid which I
> believe should be Dexron III. Good luck.
>
> Bob
>
>
> "Leythos" > wrote in message
> om...
>> Was looking at a used Saturn 2002 with 140K on it for one of my kids and
>> the thing really slammed into 3rd gear (automatic transmission) and less
>> hard into 2nd....
>>
>> Driving was smooth when not shifting, no slipping could be detected
>> while accelerating....
>>
>> Any ideas?
>>
>> --
>> - Igitur qui desiderat pacem, praeparet bellum.
>> - Calling an illegal alien an "undocumented worker" is like calling a
>> drug dealer an "unlicensed pharmacist"
>> (remove 999 for proper email address)
>
>