Runs rough...
Thread Starter
7th Gear
Joined: Apr 2014
Posts: 7
Likes: 0
From: Haslet tx
Runs rough...
vin E5121711 lt2-Z-51 auto.
I have 1,000 miles on it now and since new the engine has a random cylinder miss fire, or it feels like shaking the steering wheel.
no check engine light ever, always run 93 gas.
off idle its perfect. wondering if everybody's run smooth at idle.
as a mechanic and shop owner i would think that it should run smooth.
I have 1,000 miles on it now and since new the engine has a random cylinder miss fire, or it feels like shaking the steering wheel.
no check engine light ever, always run 93 gas.
off idle its perfect. wondering if everybody's run smooth at idle.
as a mechanic and shop owner i would think that it should run smooth.
Advanced
Joined: Jul 2013
Posts: 59
Likes: 0
From: Bodden Town Grand Cayman
vin E5121711 lt2-Z-51 auto.
I have 1,000 miles on it now and since new the engine has a random cylinder miss fire, or it feels like shaking the steering wheel.
no check engine light ever, always run 93 gas.
off idle its perfect. wondering if everybody's run smooth at idle.
as a mechanic and shop owner i would think that it should run smooth.
I have 1,000 miles on it now and since new the engine has a random cylinder miss fire, or it feels like shaking the steering wheel.
no check engine light ever, always run 93 gas.
off idle its perfect. wondering if everybody's run smooth at idle.
as a mechanic and shop owner i would think that it should run smooth.
Check each spark plug lead. One of mine had fallen off!!! Make sure that they're all securely plugged in.
Melting Slicks
Joined: May 2007
Posts: 3,269
Likes: 25
From: Simi Valley Ca
It's possible that its a spark plug wire as mentioned above. That said, I can't help but wonder if you are feeling the transition from 8 cylinders to 4 cylinders. You should see an indicated on the dash display which shows a V8 or V4 icon. This assuming you have the correct display up. I'd suggest watching the display to see if that could be it.
Safety Car
Joined: Feb 2013
Posts: 4,875
Likes: 1,174
Corvette engines have a subtle vibration at idle... they are NOT Lexus smooth... it's a characteristic. I read in a magazine review that this is a feature of the engine and designed this way (which might be complete BS)... you know, kind of like a "hurry the hell up and get going, I don't like to sit still" character. 
Mine is rough at idle (compared to any other car I've owned), it has been reported here on various occasions and completely normal and expected IMO... unless yours is severe.
Here's a link to another discussion on it... http://forums.corvetteforum.com/c7-g...idle-lope.html
Mine is rough at idle (compared to any other car I've owned), it has been reported here on various occasions and completely normal and expected IMO... unless yours is severe.
Here's a link to another discussion on it... http://forums.corvetteforum.com/c7-g...idle-lope.html
Last edited by gthal; May 13, 2014 at 07:02 PM.
Le Mans Master
Joined: May 2010
Posts: 7,756
Likes: 173
From: Ventura CA
C7 Corvette engines have a subtle vibration at idle... they are NOT Lexus smooth... it's a characteristic. I read in a magazine review that this is a feature of the engine and designed this way (which might be complete BS)... you know, kind of like a "hurry the hell up and get going, I don't like to sit still" character.
Mine is rough at idle (compared to any other car I've owned), it has been reported here on various occasions and completely normal and expected IMO... unless yours is severe.
Here's a link to another discussion on it... http://forums.corvetteforum.com/c7-g...idle-lope.html
Mine is rough at idle (compared to any other car I've owned), it has been reported here on various occasions and completely normal and expected IMO... unless yours is severe.
Here's a link to another discussion on it... http://forums.corvetteforum.com/c7-g...idle-lope.html
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Joined: Sep 2013
Posts: 648
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From: Gulf Breeze Fl
I have noticed in the last couple hundred miles I am getting what feels like a slight lean surge. It idles fine, accelerates fine and only at lower steady state rpm do I notice it. The car was built in Oct and I took her home the same month. My VIN 3385 and just turned 1400 miles. I still have a half a tanks of fuel and its 93 Octane/ no ethanol. Will try a different brand of fuel next fill up.
Any suggestion.
Any suggestion.