C6 Corvette General Discussion General C6 Corvette Discussion not covered in Tech
Sponsored by:
Sponsored by:

2012 Z06 Misfire

Thread Tools
 
Search this Thread
 
Old 08-21-2012, 10:53 PM
  #21  
K1K2K3
Intermediate
Thread Starter
 
K1K2K3's Avatar
 
Member Since: Nov 2006
Location: Texas
Posts: 28
Likes: 0
Received 0 Likes on 0 Posts
Default

Here’s the latest: All codes pointed to #4, so new #4 injector; plug wire, plug and coil pak. Picked it up at dealer after 3 days. Driving it home, service engine light came in again. Idle acted up a bit, but nowhere near as bad. Catalytic converter code. So new catalytic converter. So far, so good. But, car hunts at idle. My friend’s Z06 (a 2011) idles rock steady. My 2008 Z06 idle was rock steady as well. Has anyone had any issues with the idle hunting by about 50-100 RPM? Is it something unique to the 2012 LS7? It has done this since day one at 3 miles. (Maybe I am just being paranoid now as I don’t want to be stranded again.)
Old 08-21-2012, 11:54 PM
  #22  
All2Easy
Racer
 
All2Easy's Avatar
 
Member Since: Mar 2012
Location: Missouri City Texas
Posts: 410
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by K1K2K3
Here’s the latest: All codes pointed to #4, so new #4 injector; plug wire, plug and coil pak. Picked it up at dealer after 3 days. Driving it home, service engine light came in again. Idle acted up a bit, but nowhere near as bad. Catalytic converter code. So new catalytic converter. So far, so good. But, car hunts at idle. My friend’s Z06 (a 2011) idles rock steady. My 2008 Z06 idle was rock steady as well. Has anyone had any issues with the idle hunting by about 50-100 RPM? Is it something unique to the 2012 LS7? It has done this since day one at 3 miles. (Maybe I am just being paranoid now as I don’t want to be stranded again.)
Something still doesn't sound right.

What dealership fixed it for you? Maybe take it to another? Classic Chevy in Sugarland has a good shop.....maybe try them.
Old 08-22-2012, 09:03 AM
  #23  
Loop
Intermediate
 
Loop's Avatar
 
Member Since: Jun 2012
Location: Tampa, FL
Posts: 46
Received 3 Likes on 3 Posts

Default

I am still of the opinion you have an issue with the ECU or wiring harness.

If the issue was constant, I would agree it could be mechanical. Of course, at this point, I would have them do a compression and leak down test of every cylinder to show me the engine was healthy.
Old 08-22-2012, 11:15 AM
  #24  
K1K2K3
Intermediate
Thread Starter
 
K1K2K3's Avatar
 
Member Since: Nov 2006
Location: Texas
Posts: 28
Likes: 0
Received 0 Likes on 0 Posts
Default

On way to dealer, dropped a cylinder or two again, foot to the floor - 30 mph max. backfiring etc. No service engine light came in. Car now has 322 mph - mostly from service driving it. Dealer says GM won't do much in terms of replacement Z06 - and lemon law takes a long time/lots of documentation etc. If they give me what I paid for it...it's gone.
Old 08-22-2012, 11:20 AM
  #25  
dvilin
Team Owner
 
dvilin's Avatar
 
Member Since: Nov 2007
Location: Rochester, NY
Posts: 44,745
Received 7,929 Likes on 4,810 Posts

Default

I would be speaking with someone up the food chain and get rid of the Z one way or another.
Old 08-22-2012, 11:46 AM
  #26  
petermj
Le Mans Master
 
petermj's Avatar
 
Member Since: Aug 2009
Location: Sacramento California
Posts: 5,504
Likes: 0
Received 2 Likes on 2 Posts
Default

Originally Posted by K1K2K3
Have a new 2012 Z06. 3 miles on odometer when delivered June 2nd. At 60 miles it started to misfire - to the point of stalling. Always in stop and go traffic - hot Texas afternoons. Spent 2 weeks at GM dealer.... nothing found. With 300 miles on it, misfire started again but worse - heavy backfiring; shaking; raw gas smell. This time dealer captured cylinder #4 misfire (9900 times). Replaced coil; plug, plug wire. Left dealer…. came back 5 min later with check engine light on. Code says #4 misfire and catalytic converter. Been in dealership now for 1 week. Any ideas on what is wrong???? I posted this as well in the Z06 forum. Just looking to see if anyone has had the same experience and what the fix was. But, as the folks on that forum suggest...my call to GM should have occurred sooner! (Will call Monday!)
does your state have a lemon law? Make some lemonade
Old 08-22-2012, 02:10 PM
  #27  
carpe dm
Le Mans Master
 
carpe dm's Avatar
 
Member Since: Oct 1999
Location: Tucson AZ
Posts: 8,205
Received 36 Likes on 35 Posts

Default

Old 08-22-2012, 02:21 PM
  #28  
Daekwan06
Safety Car
 
Daekwan06's Avatar
 
Member Since: Feb 2011
Location: Arlington VA
Posts: 4,210
Received 19 Likes on 17 Posts

Default

Originally Posted by spinkick
Give it back. Dont you have a 60 day love it or leave it plan with GM?
Yep.

If that happened to me. The title of my thread would be "My new perfectly running 2013 Z06, because my 2012 Z06 was returned to the dealer".
Old 08-22-2012, 06:18 PM
  #29  
spicytuna
Le Mans Master
 
spicytuna's Avatar
 
Member Since: Nov 2004
Location: Canadian Rockies
Posts: 7,050
Received 5 Likes on 5 Posts

Default

Originally Posted by K1K2K3
On way to dealer, dropped a cylinder or two again, foot to the floor - 30 mph max. backfiring etc. No service engine light came in. Car now has 322 mph - mostly from service driving it. Dealer says GM won't do much in terms of replacement Z06 - and lemon law takes a long time/lots of documentation etc. If they give me what I paid for it...it's gone.
That is simply unacceptable on a brand new car.

I can only imagine how frustrating you must feel.
Old 08-22-2012, 07:13 PM
  #30  
Kerrdogg
Pro
 
Kerrdogg's Avatar
 
Member Since: Jul 2011
Location: Boca ARton FL
Posts: 515
Likes: 0
Received 1 Like on 1 Post
Default

If it hasn't happened already get a GM Service Rep involved, Lemon Law isn't all that hard (been there) and by now they should be kissing your ***. I am betting a pinched wire or screw through a harness, either way it's not your fault or the dealers fault (they should be on your side by now, they didn't break it), if they aren't start with getting the dealership GM or owner involved, they should want to know about this, it's the product they represent as theirs with their name on it. Pick out or order a 2013 and tell them to call you when it gets there, enough is enough after all your situation is making the car dangerous to operate.

My comments are based on 20+ years of dealership employment and one personal lemon law give back.
Old 08-22-2012, 07:17 PM
  #31  
Kerrdogg
Pro
 
Kerrdogg's Avatar
 
Member Since: Jul 2011
Location: Boca ARton FL
Posts: 515
Likes: 0
Received 1 Like on 1 Post
Default

Originally Posted by K1K2K3
Dealer says GM won't do much in terms of replacement Z06 - and lemon law takes a long time/lots of documentation etc. If they give me what I paid for it...it's gone.
That right there sounds like a service writer / advisors comment and is rubbish, make an appointment to see the GM or Owner, after all you were nice enough to trust them with your business and ZO6's cost as much as some peoples houses last time I checked.
Old 08-22-2012, 08:33 PM
  #32  
big doug
Advanced
 
big doug's Avatar
 
Member Since: May 2011
Location: Rogersville Alabama
Posts: 63
Received 0 Likes on 0 Posts
Default

had a problem like that with my zo6 2012 it was a loose connection,took the dealership about a week to find it,pm me for more info.
Old 08-22-2012, 08:45 PM
  #33  
speedlink
Safety Car
 
speedlink's Avatar
 
Member Since: Apr 2007
Location: Southeast, WI
Posts: 4,531
Received 599 Likes on 373 Posts

Default

Originally Posted by K1K2K3
On way to dealer, dropped a cylinder or two again, foot to the floor - 30 mph max. backfiring etc. No service engine light came in. Car now has 322 mph - mostly from service driving it. Dealer says GM won't do much in terms of replacement Z06 - and lemon law takes a long time/lots of documentation etc. If they give me what I paid for it...it's gone.
Do not let them fix it!
You will always be wondering, what next.
Get a new one.
Old 08-22-2012, 08:58 PM
  #34  
Ketchum
Drifting
 
Ketchum's Avatar
 
Member Since: Dec 2010
Location: Danielsville Georgia
Posts: 1,939
Likes: 0
Received 1 Like on 1 Post
Default

Started this at 60 miles! I'd stop fooling with it. They need to get you in another car asap. If not kill the deal. Get ALL of your money back. The dealer principal where you bought ought to be working with GM to get you in another car asap. I've seen this same scenario many times, Usually 'they' are jumping through 'hoops' to get the customer out of the trouble vehicle and they weren't $100,000 dollar cars.
Old 08-23-2012, 08:05 PM
  #35  
K1K2K3
Intermediate
Thread Starter
 
K1K2K3's Avatar
 
Member Since: Nov 2006
Location: Texas
Posts: 28
Likes: 0
Received 0 Likes on 0 Posts
Default

GM sending technician(s) next week. Case started with GM. (My bad on this - should have started it sooner.) GM tech has indicated this is a first for them. Most think it is BCM/ECU related as no codes came in/no check engine despite the engine shake and misfire so bad. Dealer found no codes, even while engine was screwing up, but did find that this latest event ruined both cat converters. Dealer Mgr. met with me re ensuring paperwork in place for potential Texas Lemon Law. Dealer suggested putting scanner/data grab on car and letting me drive it so that it can capture data......I am hoping GM reps next week can solve, without this step. Pretty much fed up now. Have told dealer and GM that if it is not solved next week, I am getting the lawyer to talk for me and leave the Z06 sit where it has sat for the majority of time I have owned it...in the far left corner of the shop. I did not buy a Z06 to time share it with their supposed corvette specialist. He has put more miles on it than me.
Old 08-23-2012, 08:46 PM
  #36  
Ketchum
Drifting
 
Ketchum's Avatar
 
Member Since: Dec 2010
Location: Danielsville Georgia
Posts: 1,939
Likes: 0
Received 1 Like on 1 Post
Default

Heck. THEY need to get you another car. Heck with going through lemon law crap. THEY need to get you in another car and then THEY can do what ever with that car at their convenience.
Old 08-23-2012, 10:22 PM
  #37  
2006c6keller
Safety Car
 
2006c6keller's Avatar
 
Member Since: Dec 2006
Location: Dalllas/Ft Worth Area TX
Posts: 4,642
Likes: 0
Received 8 Likes on 8 Posts

Default Got hit in the eyes before end of thread!

Originally Posted by K1K2K3
Have a new 2012 Z06. 3 miles on odometer when delivered June 2nd. At 60 miles it started to misfire - to the point of stalling. Always in stop and go traffic - hot Texas afternoons. Spent 2 weeks at GM dealer.... nothing found. With 300 miles on it, misfire started again but worse - heavy backfiring; shaking; raw gas smell. This time dealer captured cylinder #4 misfire (9900 times). Replaced coil; plug, plug wire. Left dealer…. came back 5 min later with check engine light on. Code says #4 misfire and catalytic converter. Been in dealership now for 1 week. Any ideas on what is wrong???? I posted this as well in the Z06 forum. Just looking to see if anyone has had the same experience and what the fix was. But, as the folks on that forum suggest...my call to GM should have occurred sooner! (Will call Monday!)
I got hit in the eyes before the end of the thread: WHY WASN'T THE CRANK SENSOR ALSO CHANGED OUT?
Old 08-23-2012, 11:45 PM
  #38  
2006c6keller
Safety Car
 
2006c6keller's Avatar
 
Member Since: Dec 2006
Location: Dalllas/Ft Worth Area TX
Posts: 4,642
Likes: 0
Received 8 Likes on 8 Posts

Default General Texas Lemon Law, a rough idea!

I went through alot of problems with trying to do a lemon law claim in Texas. This is some of the general thoughts from five (5) years ago, I have a 2006 C6 A6 F55 NAV:

DISCLAIMER: DISCLAIMER FOR ANY ADVICE GIVEN OR SPECULATED FOR ANY COMMENT(S) AND/OR ADVICE GIVEN IN OR FOR THIS THREAD OR POSTS.

GENERAL TEXAS LEMON LAW (A very rough idea):

1. UPFRONT ADVICE: GET A LEMON LAW ATTORNEY (Specialist);
2. Claim has to filed in/for the first one (1) year period (different states have different periods AND rules);
3. The problem has to taken to the dealer three (3) times for the SAME PROBLEM. Note: Catch here, dealer has to claim same problem each time, BUT the dealer will make up DIFFERENT EXCUSES (sometimes very lame excuses) each time for different problem;
4. Car has to be out of service for something like thirty (30) days or more in their shop, etc., maybe multible times;
5. The dealer KNOWS HOW TO PLAY THE LEMON LAW GAME (I think GM even helps coach them as in the past);
6. Dealer PLAYS DELAY, DELAY, AND DELAY to get past the one (1) year period and three (3) same problem claim.

Note: Each state has different time periods from one (1) to three (3) years AND different rules, if I remember correctly and other variables.

Advice: Start you homework on your state lemon law IMMEDIATELY, because these guys play hardball and you can definitely lose quickly.

You need to get a "LEMON LAW ATTORNEY" NOT "A ATTORNEY"

GOOD LUCK AND YOU WILL NEED IT!

PS: Don't let the DEALER MISLEAD YOU THAT HE IS FOLLOWING ALONG THIS LEMON LAW CLAIM AND DOING ALL THE RIGHT THINGS, HE MAY MISLEAD YOU. THAT'S WHY YOU GET A "LEMON LAW ATTORNEY", PERIOD!

PS: I finally got my car completely repaired, BUT it took five and one/half (5 1/2) years AND the one (1) year time period ran out (I also had the GMPP extended warranty plan (84 mos./84K miles) which made it hard for me to go away). It was tough, you have to stay ALL over them. Good luck!

Last edited by 2006c6keller; 08-23-2012 at 11:58 PM.



Quick Reply: 2012 Z06 Misfire



All times are GMT -4. The time now is 01:17 PM.