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Automatic tranny problem (WOT only)

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GRNDSM

Moderator
2,420
189
May 16, 2002
Chelmsford, Massachusetts
Find myself a complete newbie when it comes to the automatic trannies :(.

My FWD Sypder GST has this problem from the day I got it: tranny is 100% fine under “normal” driving. But when going above 90% throttle, it seems to loose a 3rd gear (it goes to shift from 2nd to 3rd, but instead ends up in what feels like neutral). Sometimes it finds next gear right a away, other times it takes a while and I have to put into neutral and then into D to come back.

This happen about 30% of the times I go into WOT, so I try to avoid it altogether. The rest of the time the tranny is PERFECT! Well, as good as you can expect DSM tranny to be ;).

Any ideas?
 
How's your fluid/filter?
Do you have another TCU you can try to swap in?
 
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