I know ive seen other articles about the trannys shifting into d and sticking or what not thats not my issue..... my problem is mine will ho in and out of Manuel mode no problem but the issue is that it wont let me upshift all the time... sometimes it works no problem other times it will let me keep climbing in the gear till it hits rev limiter and the whole time im pushing thr shift up to signal it to shift. Is tjere sensors that go bad or what please help!!!! In auto it shiftd perfect

 

Sounds like you need to clean the MM switches with plastic safe electrical contact cleaner.

 

You think thats what is not letting me upshift? Sometimes it will work flawlessly other times it just wont up shift but usually will still down shift no problem as soon as u click it back.