It has about 160,000 miles; I have not changed the spark plugs/wires since I purchased about 120k miles ago (not ideal, i realize); air filter is good; fuel filter hasn’t been changed since about 100k miles; no one has checked the fuel pressure; no check engine lights; no codes when they scanned.
The garage I took it to handed it over to a transmission specialty shop who, in turn, diagnosed the rebuild based on the idea that the torque converter was sticking. However, they took the pan off and said that everything was “clean as could be” and refused to do the rebuild because they no longer thought that the torque converter was the problem. Based on the age/mileage of the truck, I’m trying to avoid replacing part after part trying to fix the problem without knowing what is causing it… very confused.