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Old 06-28-2013, 05:09 PM   #1
njweatherman
 
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Hesitation, Jerking, Bucking At Start-up Only

I have a 2013 ss automatic camaro with less than 1,000 miles on it. Ever since I got the car, I sometimes notice that when I first start the car up and give it some gas, the car hesitates, jerks and bucks. This either happens in drive or in reverse.

However, the hesitation, bucking, jerking, etc. immediately stops once I get going and does not come back. It seems to only happen during the first start-up of the day.

Anyone else have this?
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Old 06-28-2013, 06:07 PM   #2
meshamey
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Thats normal on my 2011 ss, been like that form day 1, till it warms up
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Old 06-28-2013, 06:43 PM   #3
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Thanks for the input. I was worried something was wrong.
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Old 06-28-2013, 08:44 PM   #4
meshamey
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It is possible If the car is that new, im sure dealership put 87 octane gas in it.. that's a big NO NO. have you been putting 91 or 93 octane in it? you may need to do the fuse pull to get the computer out of low octane mode. Just do a search on fuse pull..
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Old 06-29-2013, 08:03 AM   #5
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This is perfectly normal and has nothing to do with the fuel in the car.

The sensors throughout the car do not communicate with the computer control module until a certain temp is reached. As a result, you get the hesitation for the first few minutes of operation.

This is well documented here on the site. Sift around through some of the older posts and you'll find additional info.
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Old 06-30-2013, 02:01 PM   #6
njweatherman
 
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@meshamey - I only use 93 octane and I went with the dealer to the gas station when they filled the car with 93 octane.
@TheHorse13 - good info. I mentioned it to the dealer and they had no idea what was causing it.
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Old 07-01-2013, 10:58 AM   #7
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I was searching through the site looking for threads on this issue and glad to find something current. I have this issue on an M6 and figured it was due to it not being warm, but wanted to find out for sure. Have a CAI on it and wondered if new throttle body would improve it, but if its the computer, not much will help that I assume.
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Old 07-01-2013, 02:13 PM   #8
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Nothing will improve it. This is how the electronics on the car are designed to work.
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Old 07-01-2013, 02:41 PM   #9
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Remote start it like I do....only needs a 1min warmup...then all is good!
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Old 07-01-2013, 07:55 PM   #10
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I put my DIC to coolant temp and wait till 160 F. This seems to keep the engine and me happy.
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Old 07-01-2013, 09:08 PM   #11
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Quote:
Originally Posted by Sftshldr View Post
I put my DIC to coolant temp and wait till 160 F. This seems to keep the engine and me happy.
Your dic at 160??? Ouch!
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Old 07-01-2013, 09:10 PM   #12
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hmmm...I always just crank and go, and I don't believe I have ever experienced this, I have a 2012 Auto, is this a 2013 thing?
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Old 07-04-2013, 03:23 PM   #13
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@jethrobandit - if you decide to get a throttle body, let me know what one you get and if you see an improvement. I'm taking mine to the dealer once I approach 3000 miles so they can test everything.
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Old 07-04-2013, 03:27 PM   #14
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The VMAX throttle body does not do anything for this. I have it as well going in reverse. Only way around it is let it run for about 30-60 seconds.
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Old 07-04-2013, 03:45 PM   #15
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has anyone taken this into the dealer to see what they say? I would not accept this as just something I have to accept if it was happening to me..
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Old 07-04-2013, 03:48 PM   #16
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Never thought of mentioning it since it never really bothered me. Coming from a cammed car before the Camaro the bucking is very tame to say the least I am going to the dealer on Tuesday I might ask just to see what their answer for it is.
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Old 07-05-2013, 09:29 AM   #17
njweatherman
 
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@Rhyder - I mentioned it to the dealer in passing, and they said they have not heard of anyone else having this problem. I told them I will let them keep it overnight when I bring it in for its first 3,000 mile service.

@dixonk - did the vmax throttle body give you any additional sound or just power?
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Old 07-05-2013, 02:14 PM   #18
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I would say no additional sound OR power. But drivability was much improved. Much more linear feel on the throttle and snappier response. Probably worth every bit of the 150 bucks I paid.
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Old 07-05-2013, 02:46 PM   #19
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Tuned and I still have that (b)ucking problem. Until warmed up.
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Old 07-05-2013, 03:58 PM   #20
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I have a 2013 a6 SS and mine doesn't do that also with less then 1000 miles on it.
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Old 07-09-2013, 04:26 PM   #21
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Quote:
Originally Posted by njweatherman View Post
@Rhyder - I mentioned it to the dealer in passing, and they said they have not heard of anyone else having this problem. I told them I will let them keep it overnight when I bring it in for its first 3,000 mile service.

@dixonk - did the vmax throttle body give you any additional sound or just power?
ya i wonder how many people who it does do it to just assume its normal and deal with it, never mentioning it to the dealer.....they get numerous complaints and they may actually look into it....

at least you have it on record as reported in case something goes south on you later.


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As to the throttle body, its pure throttle response improvement....well worth the money. I wouldn't hesitate to get one again if I had it to do over again.
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Old 07-09-2013, 05:04 PM   #22
njweatherman
 
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@Rhyder - thanks for the info on the throttle body. I'm debating on getting it or not in the future. Do you still have your stock Mass Air Sensor?
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Old 07-09-2013, 05:11 PM   #23
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Quote:
Originally Posted by njweatherman View Post
@Rhyder - thanks for the info on the throttle body. I'm debating on getting it or not in the future. Do you still have your stock Mass Air Sensor?
yep.
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Old 07-12-2013, 03:54 AM   #24
HarryNW
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Late into this thread - I just posted here - 2SS/RS LS3 with Hesitating/Bucking.

I have the CAI and have checked/cleaned the MAF. I would be fine with the slightly rough idle - I think it sounds mean. Its the bucking on acceleration (and even steady RPM) - that has to be wrong?!
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Old 07-12-2013, 04:10 AM   #25
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Just take it to the dealer and get a rental like I did today. Car lost total power and steering control WHILE driving (not kidding) so I'm anxious to see what they find. My Camaro has 2300 miles on it and I only put 91 octane in it now (hard as hell to find 93 around where I live).

Also I've driven it at cold (meaning hardly a warm up) and had nothing like you are describing so it is an issue. I let mine warm up a minute or so now. Besides I wipe mine down as it warms up. Kill two birds with one stone!
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