Took the monte in to figure out the hesitation and service traction control message. Also had the plugs and wires changed. Wouldn't you know she wont act up for my mechanic. This is my fleet mechanic that works on my work trucks I trust him completely. Also had no codes stored. The maf was real dirty so he cleaned that up for me. I hate not getting to the bottom of these problems but I hate throwing parts at a problem not knowing if that is the root cause. At the very least hopefully I get a little better gas milage now.