I'm having a miss Thur the 30 - 70 mph range. the dealer said it was a fuel injector clog and 7 days with no other answer, the caronly has 28k miles on it i don't think so(its a 2003 4.2). i put a fuel injector additive in it and it got better. but now its coming back. if the injectors were clogged wouldn't the car run rough all the time? i think its a computer and/or trans problem. i just don't want to spend the $700 that the dealer wants for it not to fit the problem. can anyone help me with this, any insight?