2016 For sale Yukon If you notice stuttering and hesitation while driving normally and quietly, you have a problem that needs to be solved. Many say to change things that are irrelevant, but the solution is available, tested, and at the actual cost. - For sale: Genuine injector wiring harness set (discontinued from the market). It is essential to change it because it is a manufacturing defect. - Genuine spark plug set (LT engines). - Genuine spark plug wire set (LT engines). - Injector O-ring set (essential with injector cleaning, otherwise you won't benefit). Contact by call. Only the set is available!!