A/T - 4F20E/RE4F04A None or Low Line Pressure Rise
TECHNICAL BULLETIN # 304TRANSMISSION: 4F20E/RE4F04A
SUBJECT: No Or Low Line Pressure Rise
APPLICATION: Ford Villager, Nissan Stanza
DATE: January 1995
No or Low Line Pressure Rise
This condition may be caused by insufficient feed to the line pressure control solenoid valve. To correct this condition, install a stronger spring on the pilot valve.
A 4L60/4L60-E inner pump-slide (dual spring type) can be used.
The GM part number for the pump-slide spring is 8639562.