View Single Post
Old 03-28-2016, 11:16 PM   #79
picklito
Registered User
 
Join Date: Sep 2013
Location: Vacaville CA
Posts: 490
Re: 4L80E & TH400 Tech.

Quote:
Originally Posted by clinebarger View Post
It is most likely NOT transmission related, It would trip codes if the "Shift Adapts" were maxed out.

Engine performance issues can & will cause the slow progression of later & later shifts, I have fixed similar symptoms with something as simple as a Fuel Filter.
Faulty/Dirty MAF sensor (Torque Rise is calculated by the PCM trough input from the MAF)
Great info. Makes perfect sense. Will report back if I find something.
picklito is offline   Reply With Quote