Transmission filter
by Derrick Hampson
Bad Transmission Filters
TSB 21-015-05
The above condition may be caused by a suspect cooler return filter a part number of
04799662AB. This "AB" suffix / level filter may allow transmission fluid to drain back out of
the torque converter. The drain back condition may occur over a period time when the engine
(and transmission) are not running. With less fluid in the torque converter a delay in gear
engagement may occur at engine start up while the torque converter fills to its proper fluid
level.
All 04799662AB cooler return filters with the "AB" suffix are suspect. The above condition may
be corrected by replacing a suspect "AB" filter with a new cooler return filter whose part
number is 04799662 (with no suffix or with a suffix that is other than the "AB" level).