A friend of mine just showed me a letter he got in the mail that is a recall to fix the reduced engine power code that shows a throttle body needs repaired.. the letter says to bring his vehicle in if it is a gm or chevy model less than 10 years old and less than 150000 miles and they will fix it for free. i contacted gm to see if my gmc was on the list and they told me to take it to a dealer and have a diagnostic done. i have already had one done and the codes keep changing, and from what i have read the gm site and other forums gm does not know what the problem and will not recall it unless they have to, my brother is also a mechanic and had it looked over by our college mechanic shop.still no relief, i am not willing to spend $5000 and it still not fixed.. so i guess since something like it is recalled and i get into an accident because it reduces power on the interstate doing 75mpg, ill can to take legal action? i can't drive it half the time because of the problem. in the summer it starts with reduced power because its 90 degrees outside. *tr