Discussion Starter · #1 ·
i finally took the advice of a few people on this web site and pulled my plugs to check the gap. i was very surprised that they were right!!! the gap was anywhere from .018 to .021 far below the .035 that is needed. after re gaping and reinstalling them i was very surprised at the low end response i now had!!!! get this done people . i have a 2012 2lt rs with 6 thou on it and i wish i had done this when i first read about it at 2 thou , gm could probably sell a lot more of these cars if they did this. the test drive would go a lot better!!!!