'05 STS transmission problem
#1
'05 STS transmission problem
'05 STS at 21,000 mi started "harsh shifting"
5L40-E five speed transmission
smooth as silk previously -
dealer has made "software change" -
continue same symptoms -
Need help in correcting
johnny c
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05, 2004, 2006, 2007, cadillac, deville, forums, issues, problem, problems, shifting, sts, tramission, tranmission, transmission