Pros design and build a transmission unit for how the customer uses it
and what the horsepower goal is.
A key consideration is the oil and the oil level. A new transmission will be delivered with the correct oil and oil level.
In this clip from the ASE A2 Transmission Diagnostics test prep program, Wayne Colonna talks about transmission performance codes. He talks about how on some computer controlled transmissions if there is a code stored or shift adapt issues the computers strategy is to overcome this slip by increasing line pressure. He talks about the problems this can cause during the diagnostic process and how to overcome these issues.