Hi everyone! I currently own a 2003 Chevrolet Trailblazer LT EXT. So far I've loved it, but recently every once in a while, when I'm at an idle, it's rough and acts like it wants to stall, but it revs back up. Then tonight, my husband was installing headrests with the dvd players, and of course had to unhook the battery. I've read on other threads that they have the same problem, but I just want to make sure it's all connected to him undoing the battery. Now, the a/c doesn't work on the driver's side but works just fine on the passenger, and there's the lovely knocking noise in the right rear interior quarter panel. I've read that the actuator in the back can go out when the battery is unhooked, but I'm just wondering if that would also cause the actuator in the front to go out also? And when the a/c is turned on, the car idles really rough, and again acts like it's going to stall, but it's almost continuous. Most of this is just now happening after he worked on it, but it was doing the almost stalling before, but not nearly as often. Could the stalling have been from a dirty throttlebody but gotten worse after he unhooked the battery? Of course he's not too happy since he didn't necessarily need to unhook the battery, but did as a safety precaution and now things have gotten worse. Thanks in advance!