Hi. Have a new used 10 endeavor. Has a shudder around 40 and up hills, step on it it goes away or let off. Got the torque app. Thought it was torque converter shudder but app showed slight misfire on cylinder 2. Also throws code p1770. How do I know what's what or if it's two separated problems? I changed out trans fluid but not filter cause it's inside. I think this is a good car despite a couple issues. I moved the coil and plug to cylinder 1 and 3 but no misfire for either but still acting up. Appreciate any feedback thanks

 

Is this RPM related? I had a similar shudder problem every time the rpm would hit 3-4K. It turns out it was a loose exhaust connection b/t the cat convertor and down pipe. Pipe was wallowed, but mechanic did his best to fix situation without having to buy a new exhaust system. Basically a new seal ring and bolts for the exhaust.