A/T - 4L80E No or Low Line Rise
TECHNICAL BULLETIN # 190TRANSMISSION: 4L80-E
SUBJECT: No or Low Line Rise
APPLICATION: GM
4L80-E No or Low Line Rise
The activator feed screen used in the 4L80-E should be checked for damage and cleaned during each rebuild. It is not uncommon to find the screen cracked or broken. A broken screen will allow activator feed oil to leak causing no or low line rise. The GM part number for the screen is 8661709.