c6love

Hey everyone Im a new member to the forum and bought a 2010 c6 base corvette (stock/ no mods) and love it just seem to have one on and off again issue and am wondering if anyone else has experienced . from time to time , ill be at a red light and it will make a sound as if it is running out of gas and going to turn off than goes back to the normal idle sound . I put in good gas and well maintained . I took it to the dealership and they said its "normal" and the A/C compressor unit is turning on and of and is normal. but it does it when the A/C is on and off .

If anyone has a possible explanation or has had the same experience i would greatly appreciate some input.

rsparks64

My AC can be a bit loud, but my car (08 stock) has never done what you describe.

JoshBarber

I have a '06 C6 convertible and mine idles solidly, it does not hunt. Also with AC on or off no issues with idling.

Take it to another dealership.

cmonkey713

When the A/C compressor engages the engine will show a decrease in RPM's for a moment which would be normal. If the engine exhibits a "stumble" or cut out that is not normal. Unfortunately without actually experiencing the symptom first hand it would be impossible to determine your specific issue. If you have any friends with a C-6 Corvette check out what their car is exhibiting when the A/C compressor engages and compare to your car's symptom.

c6love

Its really abnormal . Dealer had all the fluids cleaned out and replaced the throttle body twice and still from time to time will have the problem

c6love

I rented a c6 before i ended up owning one and really drove it from west palm to the keys and all around and never had that problem.

jrose7004

I've never noticed that on mine.

Vette_DD

Same here on my 2012 coupe, or on any other model year C6s that I've had. Never happened here.

ruxvette

Loose plug wire...

EVRose

This is what I was going to suggest as well.

Hameister

Although I have not been able to experience what you describe,.."it will make a sound as if it is running out of gas and going to turn off than goes back to the normal idle sound", your description is much like the stumble, choking sound an engine makes just before stalling, and then it goes back to a smooth idle.

I'm running a totally stock 2013 LS3 GS.
Other than a momentary drop in idle when the A/C compressor is activated, I have never experience what you describe, in my 'vette.
Not unusual for a dealer to tell you something is, "normal", when they're clueless as regards the problem.

scotzz

stock 2005 and never experienced what you describe..............I can't even tell if the compressor is on or off

rado63

Sounds like an electrical problem or a fuel problem that should be looked into. Why was throttle body replaced twice? Start with checking for a loose plug wire as suggested.

Bat66

I have an 07 and mind does the same thing sometimes, I've checked the plugs and wires, it doesn't do it all the time.

blittle

Agree!!

Gary '09 C6

...and/or need to clean/replace the mass air-flow sensor (MAF) ?

Bigredwing

Sounds like fuel to me. Have you checked the fuel pressure or tried any fuel treatments like Seafoam? If you do use a treatment it might clean up any injector problems. Also make sure you run the whole tank after treatment before refilling to get the best results of the additive.

Jim2003

My 13 C6 does not do that. I would get Chevron Tetron and run at least 2 tanks with a bottle in each tank. Run the tanks down low before,refilling. I am guessing you have an injector that is sticking.

In Louisville I am not near a Chevron station so I buy the additive. If you are near a Chevron station run their top gas for a couple of tanks, but you will solve the issue.

The dealer is wrong about the AC compressor. I had a 03 C5 and now my 13 C6 and neither one did or does what you describe.