My gf's Eclipse 2.4l with the sport auto tranny has 90k on it, and recently started stumbling when you punch the gas from a dead stop. As well, she claims it will also stumble/hesistate some when shifting from Rev-1st and 1st-Rev. She says it's worst when her A/C is on, and isn't bad if she doesn't get heavy into the throttle from a dead stop. I replaced the air filter, tranny fluid to Redline C+ with no change in symptoms, and we got a CEL for one day but disappeared yesterday. I'm going to get the code pulled tomorrow when I can borrow the car to go to Autozone. Without getting deep into this, I suspect two things:
1) Transmission trouble. I noticed that the fluid level was low when I changed it, and some fluid had leaked at the filler hole over the front and bottom of the tranny case. Considering most of her miles are highway, this is concerning. I get no blinking N light, which the factory manual suggests will happen if there is a code logged by the PCM.2) MAF, dirty throttle body, TPS, etc going a little wacky. Would the PCV also have something to do with this? (I have a replacement ready to go).
I would appreciate any suggestions as where to look first and what common issues are. Unfortunately my searches of
Dave