I have a 2017 Escape Ecoboost. The engine began to shake when I put it into gear with my foot on the brake. Transmission shop said it was the torque converter. Spent $5,000 to rebuild transmission. Still shakes. The engine idles high. When taken out of gear, after a few seconds, the idle drops to about 800 RPM. Transmission shop said it is a vacuum problem they cannot find. Dealer says there is not vacuum problem, and it is the torque converter. Took back to Tranny shop. They said they tested it and transmission is fine. Any suggestions? Is it possible to request that the dealer bring in an expert?