Two problems related to transmission solenoid have been reported for the 2000 Dodge Durango. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2000 Dodge Durango based on all problems reported for the 2000 Durango.
I have a 2000 Dodge Durango that has 109,000 miles. Traveling on an interstate highway at 75 mph, my transmission dropped from 5th gear to 1st/2nd gear causing me to lose control of my vehicle ending up in the median. Upon taking the vehicle to a dealership in topeka, they replaced the transmission solenoid (which I was told usually goes out around 100,000 miles)(I believe this was the part, they told me that it controlled all shifting based on pressures inside the housing) and told me that nothing else was wrong with the vehicle. Less than 80 miles after receiving this service, the same incident occurred on a two-lane highway at approx. 65 mph. I, again, lost control of my vehicle, initially west-bound, and ended up nearly getting impacted on my passenger side by an 18 wheeler before coming to rest in the east-bound ditch. This time, the complete transmission was replaced by the topeka dealership. I have the parts for the "old transmission" minus any parts that required a coring fee (the dealership stated they would not allow me to take these parts, even after offering to pay the coring fee). The dealership explained to me that the original replacement part was a temporary fix and "could have lasted up to 2 years, but for you it only lasted 1 week. ".
The over drive will engage and disengage by itself,then the transmission started slipping. The dealership replaced the overdrive solenoid. The problem still exist. The cause of the problem was due to the pressure boost valve cover plate holes not being big enough. There's a TSB 211100 on this issue, in which it indicated that the dealership will replace the existing plate with a plate that has bigger holes to correct the problem.