transmission will not shift into OD
The trans will not shift into overdrive except on very hot day and then only after it has been driven about 30 miles. it
will shift in and out as it should until the truck is stopped and it cools some the it has to be driven for awhile.
Sounds like you probably have a sticky OD push rod... It is the mechanism that engages the overdrive. Have you tried to change the fluid? That could do wonders. It could fix it.
Search Dodge Ram 1500 Questions
Dodge Ram 1500 Experts