So everything seemed perfect in my Z51 3LT convertible. 1300 miles now. Began noticing a lot of heat in the driver's footwell. AC is always on since I'm in Miami. Also seems like the climate control can't figure out what temperature I want the car to be. Any thoughts??


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So everything seemed perfect in my Z51 3LT convertible. 1300 miles now. Began noticing a lot of heat in the driver's footwell. AC is always on since I'm in Miami. Also seems like the climate control can't figure out what temperature I want the car to be. Any thoughts??
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Your ECM's need the most recent reflash. Check with your dealer.
Ryan; Most issues we've seen are due to low voltages, I think what you are seeing is OK. What are you using to get those voltage readings and what are those readings when you are not having the "flicker"?

 

update on broken valve spring engine development person looked at it and he agrees with service department its only the spring no piston contact compression is good in all cylinders and all the same. no answer why it failed yet and cant be fixed until mid next week where new spring has to ship from is frozen I hope we don't have a problem with the other 15. production #1325 on vin Z51 3LT

 

Am going to the dealer this week. Hope the reflash helps.


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Intermittent Front Brake Squealing: GM Service Bulletin

Thanks to "DrPowers," we have a copy of a GM service bulletin on Intermittent Front Brake Squealing.

 

took delivery of my Z51 about a week ago. at about 350 miles. noticed two minor issues...wheel alignment slightly pull to the right on the fwy. and a minor paint defect...small bump on left side of the hood ( have to really look at it closely to see it). any remedy? both should be cover by warranty? and does anyone else have that same issues? thanks

 

Nope none. Why so many miles?

 

How is 350 miles a lot? Isn't that why you buy a car? To put miles on it?


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I've read where others have had their car pull. Some had their car re-aligned, while a couple had a defective tire replaced that fixed the problem. The bump you describe may be a panel issue, but check with your dealer.

 

thanks. the pull is really light...only happens when i let go of the steering wheel that's when it slowly go to the right. as for the small bump, i will take it back to dealer and have them look at it.

 

I recently took mine in because of a slight pull to the right. Service department checked front end alignment and adjusted slightly but it was not really out of alignment. Service manager drove and felt it was resolved. My son-in-law went to pick up the car and stated it was still pulling to the right. So he took it back in and they rechecked the alignment and it was still aligned. So service manager felt it was a result of the tires really sticking to the road. Because of the the shape of the road it is causing a slight pull. The dealer had a new one on show room floor and took it out for drive to see how it responded and it did the same. Because I have not read much about it I felt I would comment here and hope that there would be others that have same issue and or suggestions to resolve the problem.


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these super sport tires are like that. have a set on my other car, did the same exact thing...going to get P zero next time...

 

They do have tendemcy to follow grooves in the road but shouldnt always pull right.
If alignment fine might just be roads.

 

If it is the roads, then take it to other roads. Not ALL roads are going to cause it to pull right (some might not pull, some might pull left, some might pull right). Also, the dealer took one from the showroom floor out and it pulled right, or you took it out and it pulled right? Even if it did and you know it to be true, all that might say is some Covettes are coming from the factory pulling right. If that is the case, align them all.

Finally, I can't stand a car that is not very well aligned. When I have an alignment done, I tell them up front this is a big pet peeve of mine, and just because it is in the green when they are done it may not be good enough for me. I make sure they understand and agree before they work on a car for me. When they are done and I drive away, about 1/4 of the time I end up back at the shop 5-10 minutes later saying it is not good enough. I usuall then get a ride-along with the tech who did the alignment, show him what is happening, and then let him have a go of it again. Only once was it not perfect after the second try.

 

I have a Z51 Auto trans. Picked it up on Dec 24, have about 2200 miles on it now. Love the car. About several weeks ago, I noticed that from a cold start, I put it into Reverse to back out of my garage and nothing happened. Like it was in neutral. Let it warm up a bit and put it in reverse again, and it worked. It happened again a couple of weeks ago, same thing. Was in reverse and it wasn't moving. Gave it some gas and it made a "clunk" sounds like it went into gear and jumped into reverse. So for the past few weeks, I let the car warm up before backing out of my garage. Thought that was the issue. Today, when I went to back out of the garage, thought I warmed it up, but guess not. Same things happened in Reverse. So was curious, and tried putting it in Drive, and same thing, no movement, like it was in neutral. Put it in reverse and gave it some gas and it finally engaged "clunk" and backed up. Called my sales rep today and left a message. I'm going to call another dealership that is closer to home tomorrow and see if they can check it out. Anyone have this issue or know what's going on? Low transmission fluid?

Also, Tire temp always at warm. Even though it was really, really cold outside. It always seems to stay at warm. Do I need a reflash of some sort or sensors bad?

Thanks all!

 

Has to be under 30° for a lil while for tire to show cold. Also have to drive like 100 yards for it to read and show correct temp.

Its been 60 and higher in Florida

 

Oh, ok...I was noticing this a few weeks ago when we were in the 40s here, so if it needs to be in the 30s before it reads Cold, then that's the answer! Thanks!

 

Below 30s

 

Thanks Jay. Sorry to hear they could not get it to replicate. If you have the means to get a video / audio clip of the problem when it does repeat, maybe that will help in the troubleshooting process? Just a thought...

 

Took delivery Saturday (3/1/14). Car has 33 miles on it. Transmission gone. Well not totally, but it won't move forward or reverse w/o going heavy on the throttle. Thumps into and out of gears (1st and 2nd). Managed to get her to the service bay and they couldn't figure out what it could be. Stuck brake? Tranny? 7 hours later they are "guessing" transmission. It limped around the service bay area about 4 times and they could not get it to move without going heavy on the throttle then it moved at a snails pace with engine revving. I ordered this car on Jun 18th and can't tell you the negative issues surrounding it. Build date: Jan 23rd. Dealer got it March 1st. I brought it home late afternoon March 1st. They said they'll probably need the car for 2 or 3 days. Also, the windshield needs to be replaced - defective, but that's minor compared to the transmission.

2LT, 6 speed paddle, Z51.

 

Well glad to see you back!! I was wondering how you made out with that rail shipment. We were built at the same time. You're saga continues. I've had my C7 for over three weeks. abt 500 miles so far..wx been tough..sounds like a lemon..

 

that sucks, I feel bad for you, I sure hope I don't end up with the same issues. sounds like a fairly significant transmission failure, broken band, or some issues in the valve body not allowing the servos to do their job.

 

Service called and they are going to open up the trans on my C7 tomorrow. Not sure what they'll find, but they ordered a rental car for us. Gee, I wonder if it's a C7 rental? (grin). They are also not sure if they will be able to repair whatever they find, or if parts (trans) will have to come from Bowling Green.

 

TorchRedC7, we are so sorry to read about your major transmission problem. Hopefully they fix is real soon!

 

Wow TorchRedC7 what a horrible story. Hopefully you wake up in a few days and this nightmare is over!
Keep us posted on the progress.

 

Active Hatch Vent. My hatch has always required a big push to close. I just finished reading the Edsall book about the Stingray where they describe how the vent system works and I'm wondering if maybe something is wrong with mine. I'm wondering if anyone else on the forum has noticed this issue. My temporary fix is to leave the door ajar when I close the hatch to make it easier to close

 

Dealership said it's the Valve Body. Problem is they need a gasket and the gaskets are on back order. Could be a week to two weeks delay! If they had the gasket, the car could be finished in one day.

It sucks.

 

Make sure the tranny is flushed, and the filter changed before they give it back to you. I would hope that is standard practice, but it can't hurt to question if it was done.

 

Sounds like someone misaligned the gasket when assembling the trans.


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Just got back from visiting my C7 in the bay of the dealership. Got some neat photos and will try to post same. I expected to see a part - a steel part or some such thing - with a crack or break or issue. Instead, I saw what looked like a circuit board. That was the culprit! Saw the gasket that supposedly no body has in stock. I will try to post pix...
This is the valve body that failed:

 

Just got back from visiting my C7 in the bay of the dealership. Got some neat photos and will try to post same. I expected to see a part - a steel part or some such thing - with a crack or break or issue. Instead, I saw what looked like a circuit board. That was the culprit! Saw the gasket that supposedly no body has in stock. I will try to post pix...
This is the valve body that failed:
View attachment 4782

was it the separator plate, or one of the gaskets that are on each side of it that failed? were there check balls jammed in the holes of the separator plate? if so, there is a bigger issue at play, and hopefully they aren't just treating the symptom, rather than the cause.

 

Here is the gasket:
(Below it is the cover)

 

A few more shots of my baby...