Replace Transmission Cooler Return Filter if it Has "AB" Suffix on Jeep Grand Cherokee

If the transmission delays initial gear engagement after being parked overnight or longer, it may be due to a suspect transmission cooler return filter. If the transmission was recently serviced and the part number for the cooler return filter contains an "AB" suffix at the end, a new filter should be installed.

RepairPal Verified
Average mileage: 92,714 (41,000–156,000)
Drive Trains affected: 2WD, 4WD
12 model years affected: 1999, 2000, 2001, 2002, more2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
23 people reported this problem
6 people shared problem details
On cold start when the transmission goes closed loop (this is a few minutes into driving) the transmission will stall the engine when coming to a stop. At that time there is also delayed engagement, the stall is due to delayed disengagement. After changing the transmission filters (after I read this link) the stalls no longer occur and engagement is normal. Thanks! This advice was right on...
clogged and fried trans
2005 jeep GC Limited 4 WD. Trans slippage after sitting, then ok after a mile. Has been doing since almost new. Changed trans filter and oil at 30k and 60 k. Still does it....
2006 Jeep Grand Cherokee- 4WD70,000
same as already stated delay in engagement
2005 Jeep Grand Cherokee- 4WD41,000
Delayed shifting after being parked overnight
transmission delay if car sits over night
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