Anyone know if these are common issues? or covered by the dealer? My dealerships here are useless and either tell me it's someone else job to answer my questions and I can't get a hold of that person or I leave the car with them all day and they still have excuses of why they didn't get to it or whatever, but they did the LOF. FML.

I have 3 small but annoying issues, when auto rev match is on, when regular driving upshifting from 1-2 it'll blip the gas and I get a harsh
up shift.

The audio once crashed on me and stayed "audio off" and nothing would work, so I did a battery reset disconnected the terminals and held them together. Got the audio working again but now when I start the car the music comes on and I still get "audio off" and no controls for a solid minute before it starts working again.

and I can't fill up fuel without the pump constantly clicking off so I don't know when it's full and I don't want to over fill.

I'm about ready to just fix these myself and pay for them out of pocket because I'm so sick of how useless the dealerships are, however I expected more for spending $100,000.

 

For more information, you should state where "here" is. Other members from that area might be able to help you find a better dealer's service department or who to contact at GM to get issues resolved.
I have a 2014 M7.
Issue 1, Yes I get the high rev between shift 1 & 2 sometimes. To me it's not an issue so I don't plan to take any action. However, I found that pushing the shifter into neutral and pushing it away from the extreme left (between first and second) solved the revving issue. Mine doesn't rev that high and it's only an annoyance. If it's worse than that, maybe your dealer should look at it.
As for the radio issue, did you select audio on the menu? If you have then the radio should turn on with sound within 20 or 30 seconds of starting the car. I have a short delay, but when the sound comes on, the screen shows the tuner selection. From what you described, I think that might be an issue for the dealer.
For the first time today I experienced the fuel filler problem like you have. Never had it before but I had it on my C5 and my old 96 Jeep. In the past it was always the gas station's pump that's the culprit. If I went to another station, no problem. If you're having the same problem at the same gas station, then try another station that day to see if it's a constant issue. If it is constant, no that's not normal.

 

On your issue #1, I'd bet anything you're not accomplishing a smooth release of the clutch at the engagement point. Practice quick and smooth releases as opposed to just letting go of the clutch pedal.

On #3, are you from CA? Due to stricter CA emissions regulations, their fuel vapor capture pumps seem to cause problems on a lot of different makes. It was an epidemic w/ Jaguar F-Types, and I believe there is a TSB out for the C7 as well. Ask your dealer to look it up.

Even in other states, it's sometimes just a problem w/ a particular pump nozzle. They need to be changed frequently and some stations are just sloppy with regard to maintenance.

 

Yeah like I said just big annoyances for such an expensive car, I'm in Mississauga, Ontario Canada and I own a general repair shop here so I think the dealers don't really like that I've done my own research, took me 4 visits just to get them to cover my rotors under warranty for the 2 piece design warping even though I showed them the TSB they still gave me troubles, and yes they did vibrate like crazy.

I know I'm not the only one with this audio off issue either, http://www.corvette7.com/forums/showthread.php?t=337292 here's one person but I've seen other threads too.

The 2nd rev thing isn't that bad but again, just an annoyance so I was wondering if there was a reflash or something to fix it. Could be my driving maybe foosh. I will try that. Pretty sure I have been trying to let the clutch out faster in hopes to avoid it hahaha

The gas thing happens everytime I fill up, regardless of pump, I was thinking maybe it was due to the quick fill cap that you don't have to remove maybe.

 

The issue with the gas pumps usually depends on the pump at the station you are using. I have been to some stations where it is much more annoying that at other stations. Has to do with how well/fast the gas pump, pumps the fuel. If it is consistent accross gas stations/pumps, it might be the internal pump in the tank itself. There are pumps in there that equalize the fuel to each side of the tanks, yes two tanks in the C6/c7 and they must get equalized.

I'm up here in Maple/Vaughan and in general Wilson Niblett is the goto GM dealer but i also deal with Jim Wilson in Orillia as they also have a very good Corvette Tech.

 

No. 3 i know as well with mine. usually helps to push the nozzle a bit further in or pull it out a bit.

 

#1: Have experienced this issue several times but not enough to cause me to take it to dealer. It has something to do with the way you shift. Keep your hand on the shifter with your palm on top of the shifter. Do not hold it in your hand with your thumb wrapped around it as you would a beer can. Make a firm shift from 1-2 and allow the gate to work as designed. Did you install a CAGS eliminator? I did, and it may be that has something to do with this issue.

#2: Not sure there - mine has never done this so it may be a legit issue that requires a reflash?

#3: This issue has been discussed ad nauseam. It is a very common issue. I've posted in a couple of those threads that the best practice is to put the nozzle in the filler neck opening and allow the first coil of the retention spring on the spout to engage the lip on the inside of your filler neck to hold the nozzle in place. Then, squeeze the nozzle lever and engage the hold-open latch at the first, or slowest detent on the hold-open rack. Then be patient. The difference between time-to-fill at that setting and the fastest setting is negligible. My business is fueling systems equipment and we sell, service and install the nozzles, tanks, pumps, dispensers and everything in between. The nozzles are not designed to be installed upside down in the filler pipe as many have suggested in other threads. Do not do that. You may get away with it a few times, but it will bite you one day.

 

Remember the C7 also has a anti-siphon grid in the inlet nozzle neck that could be restricting flow just enough to make the gas pump cut off.




There was a recall on some models because the grid could come loose and fall into the fuel tank.

 

Nope, I don't think that's it. I know what he's referring to. When you push in the clutch going from first to second, sometimes the rev matching races the engine, almost like you were downshifting, but of course, you're not. It's annoying, but smooth clutch release won't solve it because the revs are wrong for the speed of the car. At some point the clutch engages and causes a slight lurch forward. Smooth clutch release might minimize the lurch forward, but doesn't solve the problem that the revs are just plain too high and incorrect. I've tried using the gas pedal hoping that would correct it, but it doesn't. That's when I reasoned the computer thinks I'm putting the shifter back into first. I tried pushing the shifter off to the right, like a 1, 3 or 1,4 shift and voila, the revs went down to where they should be. There's probably a fix for it, but it only happens once in a while with mine and it's an annoyance, not serious enough to want to take action.

 

Yes, I also have the auto-rev between the 1-2 shift, but am still able to accomplish very smooth shifts. It's not CAGs even though mine is not disabled because I never shift out of 1st until after 20 mph. I've never seen CAGS.

 

Try a different dealer. Wilson Niblett specializes in vettes. And is a Callaway dealer.

 

With the C6 I had, I learned that when it clicked off the first time, it was full and anything added would overfill it, unlike with most other cars where you could keep pumping after that initial click before it overfilled. There were threads along this line a few times with others confirming that.

I've just had my 2016 a few days and have filled it once. I stopped after the first click and the fuel gauge indicated full.

 

What exactly would be this "bite"?

 

Some cars had that grid fall out of place and ended up in the gas tank proper.

Having seen one disassembled (not mine) to get to the tank, it's not a pretty sight (nor will it be cheap if out of warranty)

 

One possibility is the risk of the automatic shut off not working as designed, resulting in an overfill and spill. This could lead to a sizable spill if you are distracted by a cell phone or are up front under the hood and don't realize it. As another car nearby starts its engine or there is some other source of ignition, it could become a sizable fire in a very short instant.

The other possibility is the nozzle coming out of the car and the hold-open latch staying engaged - resulting in an uncontrolled spray of fuel. If your driver side door is open or you have a convertible and the top is down when this happens...you get the picture.

BJ