While operating my van it would hesitate and missed three would be intermittant firing issues. 2,4,6,8 on diagnostic report it said misfiring. i replaced all injectors, coil packs, coil wires, and all spark plugs. i was still having the misfire on 2, 4, 6, 8. i took it into pat obrien chevy and they said it was ecm which a recall was issued on 2010 gmc savannas. the bulletin #1451b. the ecm # 86aaf7k23177bcwl. part # 368850 service #12633238. module 12633238 $344.01 labor $ 400.95 i have repair receipts if needed. [xxx] [xxx]. information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6).?*jb