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.
Replace Transmission Cooler Return Filter if it Has "AB" Suffix on Dodge Ram 2500
Average mileage: 123,700 (110,000–137,400)
Drive Train affected: 2WD
7 people reported this problem
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Viewing 1 - 3 of 3 problem details
2002 Dodge Ram 2500 - 2WD 137,400 mi, Visitor
Transmission is slow to engage in reverse or forward. It has a whining noise. Just bought truck it looks to have a reman trans in it, just replaced ecm. No check engine light.
1996 Dodge Ram 2500 - 2WD
After sitting for 24 months transmission delays shifting 2nd to 3rd.
2005 Dodge Ram 2500 - 2WD 110,000 mi, Visitor
My truck does exactly this. I put it in gear after it has been parked overnight and it takes a few seconds to engage in gear. I recently had my transmission replaced.