hi all, first time poster to the stang forum... 02 v6 mustang revs very high when starting. "service engine soon" light is on all the time. approaching 40 mph, especially when going uphill, car hesitates and bucks, "service engine soon" light blinks, sometimes for a long time, before going solid again. at the same time the service engine light starts blinking, the A/C goes warm and does not begin to cool again until service engine light goes solid. i am pretty handy with fixing things around the house, i can take apart and repair washing machines, laptop computers, etc, but with cars i just take them to the mechanic. but after spending $1800 at sears 6 months ago for this mustang and having it run like crap, i figure maybe i can do a better job for cheaper. at the very least, maybe if you folks give me some insight about it, i can avoid getting ripped off. any suggestions? i heard i might be able to take it to pep boys or auto zone and have them read the computer codes for free, is that true? thanks in advance for any help.