2002 chevy cavalier, 4 speed auto, 2.2L, 150,000 miles....
The car's check engine light and traction control light come on every so often. When they do the car will shake from 0-15mph, and sometimes it doesnt seem to want to take the gas. Ya know like if im wanting to pass someone, it takes a couple extra seconds to accelerate like it should. If those warning lights are not on it drives great.
So i hooked up scanner and the only code i get is
P0742. I changed the filter and fluid a few weeks after this started, an cleared the code. It seemed to help, light didnt come on for almost a week. But its back to coming on atleast once a day.

All this started back in august, it doesnt bother me much, cuz it usally acts up only once a day and it isnt bad. But thinking about selling to get a bigger vehicle, and want it fixed so i can get top dollar for the car.

I have read that it could possibly be one of the solinoids, i know they're internal. How hard is it to replace them? Or do yall think i have a bigger problem? Thanks