I'm all about improving this problem as I too have the same experience as the Op... I just wanna :banghead: when I hear moving up to higher octane. I vowed never to have to do that when I bought a new car... I went from using higher octane in my last Isuzu because it would knock crazy if I didn't & am so disgusted with gas prices (yea I know, they are down... for now), but living in a large metro area you have to have some get up and went with your vehicle. I've managed to compensate, but **** if I don't have to almost stop to get the jump on traffic. I know, I know M/T, but there to I wasn't going back to that either... maybe I'm lazy, but I want the car to do the work, not me, but I digress.I had that happen when it got really hot outside. I floored it and it choked pulling out into traffic and I thought I was going to get T-boned.
1) Spark plugs gaps - remove them and adjust to .035". There's a huge thread on this issue.
2) Run a higher octane gas than 87.
Throttle response was MUCH improved after the first one, mildly before the first by using higher octane.
I'm going to have to pull the trigger & check the plug gaps myself... I too think that my experience will be like yours, well at least I hope it will. I did the resonator delete two weeks ago & saw an improvement in gas mileage. So, here is hoping the gaps will give back some much needed responsiveness.I bought the Cruze for the same reason; my previous car would only run on 89 or 93 and got a whopping 16 mpg around town. I was annoyed when I thought I'd have to run on high octane again.
To be honest though, it hasn't been as hot, but since I changed the gaps, I've run two tanks of 87 and it runs great!
It has across the board with everyone that has done this. Do let us know how it goes though!I'm going to have to pull the trigger & check the plug gaps myself... I too think that my experience will be like yours, well at least I hope it will. I did the resonator delete two weeks ago & saw an improvement in gas mileage. So, here is hoping the gaps will give back some much needed responsiveness.
Copy that I most definitely will post my results when I check the gaps. I can't honestly say I've listened or noticed a difference in sound... I don't plan on changing my stock muffler... I just have a chrome tip on it for aesthetics & really looking more for efficiency than sound... looking around for a good price on a K&N drop in, but that is about all I'll be doing.It has across the board with everyone that has done this. Do let us know how it goes though!
How does your exhaust sound now that you removed the resonator? Do you still have the stock muffler?
If it's Savannah, GA, I'd absolutely run premium year-round. The heat and humidity do a number to a car's throttle response down there. Running the air conditioning at setting 2 or 3 for 9-10 months of the year definitely won't help, either.
I'd get the re-flash at the dealer for the hesitation, re-gap the plugs, and run premium in the tank going forward. Also, look into a tune if the hesitation is still there.
I just purchased a 2011 Chevy Cruze LTZ RS. I've noticed that on take off the car hesitates a second before it goes. Example: pulling into traffic is very dangerous because when I floor it the hesitation sucks. Is anyone else having this issue?