95 Max Auto trans not downshifting during rolling stop.

95 GLE Auto max will not downshift reliably when coming to a rolling stop.

If I come to a complete or nearly complete stop, there's no problem. If I do a rolling stop at about 10k/h, tranny appears to stay in 3rd and lugs when begin to apply gentle to moderate throttle. If I apply more throttle, trans will downshift however, not smoothly, but as if you were going to pass someone.

If I pull the shifter back to 2nd while it's lugging, it immediately downshifts and accelleration is normal.

Dealer mechanic acknowledged problem, recommended a trans flush and said if that didn't fix it, it was the valve body at $1,000. I've read rumours on this and other sites that it could be simply a bad solenoid however, can't seem to find anyone with exact same problem.

Question is, is there a way to look at error codes for this trans?

Is there a solenoid controlling this downshifting? If so, can I check it somehow?

How can I diagnose this issue further, prior to experimenting with $1,000.

Thanks in advance.

95 GLE Auto max will not downshift reliably when coming to a rolling stop. ...Question is, is there a way to look at error codes for this trans? ...Is there a solenoid controlling this downshifting? If so, can I check it somehow?

Tranny has a self diag, DIY. However, if connectors are oxidized, tst will be of no use...

1. check links for manuals, bottom of page: http://www.cardomain.com/memberpage/748507/1

2. Read http://www.cardomain.com/memberpage/748507/14
http://www.cardomain.com/memberpage/748507/15

(your tranny is different from vge tranny, basics are the same)

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Sadly, this is normal operation for our auto trannys.