Ram tranny problems

thats were i would start . some times the most simple stuff will screw u . evin a fresh filter and fluid change can help . also in the tranny there is a pressur swithch and a governer switch they work together they are electric controled . easy to change under 150 $ done i to about 3 trannys when thye mess up acts like tranny is junk try that before u go spending 2500 on a rebuild