Official Z06 Problem List
08-11-2017, 12:48 PM
#81
Mine used to work but for a year now the fans start and quit after 15-20 minutes and wont restart until the car sets for a while then the same. Had it in 3 times, the last time I was told that GM engineers were contacted and they told him they are designed to go off after 30 minutes as part of the power management system. All non safety related accessories are turned off so the battery is not drained. WOW really-who would design a ventilated seat that way and who would buy them. NO ONE is the answer to both.
As for the replies for the AC mine works great, no complaints whatsoever (knock on wood). If it doesn't get cold to your liking something is up.
Last edited by Krazy; 08-11-2017 at 12:50 PM.
08-11-2017, 03:09 PM
#82
Moderator
Thread Starter
Member Since: Jul 2005
Location: West MI
Posts: 27,704
Received 3,622 Likes
on
1,741 Posts
CF Banner Relay Captain
West MI & JAX/NE Florida
Events Coordinator
St. Jude Donor '11-'12-'13-'14-'15-'16-'17, '21
Mine used to work but for a year now the fans start and quit after 15-20 minutes and wont restart until the car sets for a while then the same. Had it in 3 times, the last time I was told that GM engineers were contacted and they told him they are designed to go off after 30 minutes as part of the power management system. All non safety related accessories are turned off so the battery is not drained. WOW really-who would design a ventilated seat that way and who would buy them. NO ONE is the answer to both.
08-11-2017, 05:11 PM
#83
Race Director
Got the call back on mine, new torque converter going in, should be ready Monday.
The following users liked this post:
DebRedZR1 (08-22-2017)
08-12-2017, 02:58 PM
#84
Melting Slicks
^^How many miles are on yours?
08-13-2017, 01:23 PM
#85
Race Director
Almost 20k. Seems like it has always acted a little strange but the past few thousand miles it seems much worse, especially the transition back to 8 cylinder mode.
08-13-2017, 01:36 PM
#86
Team Owner
Member Since: Sep 2005
Location: Big Bend Country, TX
Posts: 29,114
Received 2,186 Likes
on
1,337 Posts
St. Jude Donor '06-'07-'08-'09-'10-'11-'12-'13-'14-'15- '16-'17-‘18-‘19-'20-'21
NCM Lifetime Member
Mine used to work but for a year now the fans start and quit after 15-20 minutes and wont restart until the car sets for a while then the same. Had it in 3 times, the last time I was told that GM engineers were contacted and they told him they are designed to go off after 30 minutes as part of the power management system. All non safety related accessories are turned off so the battery is not drained. WOW really-who would design a ventilated seat that way and who would buy them. NO ONE is the answer to both.
The following users liked this post:
Torque Obsessed (12-13-2021)
08-15-2017, 11:28 AM
#87
4th Gear
2017 Z06 Loud POP sound at 5000 - 6000 rpms Automatic
If you OWN or have OWNED a Z06 that experienced more than MINOR issues
Please list year of the car, A8/M7, Z07 package/Stage and your location, Briefly list Issue(s) , if still occuring, dealer resolved ( how many fixes involved) , buyback/ lemoned etc.
Please confine your replies to the Subject and please no bashing. This is an information thread, have requested a sticky so we can monitor issues.
Please list year of the car, A8/M7, Z07 package/Stage and your location, Briefly list Issue(s) , if still occuring, dealer resolved ( how many fixes involved) , buyback/ lemoned etc.
Please confine your replies to the Subject and please no bashing. This is an information thread, have requested a sticky so we can monitor issues.
hard Acceleration bring RPM up to 5000 plus then listen for a Loud Pop sound. GM states this is normal?????
Last edited by ezcarbo; 08-15-2017 at 11:28 AM.
08-15-2017, 05:04 PM
#88
Instructor
2015 Z06 A8 2LZ Stage 2 Aero 8,400 miles
After completing 1,500 mile break in, switching to 15w50, and changing differential fluid ran car on track for first time at Autobahn Country Club in Joliet, IL. While shifting A8 manually and using a red line of 6,000 rpm received warning to idle engine to reduce coolant temp after running for less than 15 minutes in 73 degree temperatures. Made an appointment with dealer for diagnosis. Dealer found no problems with car. Changed coolant mixture to 80% water / 20% anti-freeze. On next visit to track, received warning to idle engine to reduce coolant temp after less than 15 minutes in 75 degree temps. Upgraded to Ron Davis radiator and added DEI heat blankets over catalytic converters and oil lines. Car was then able to run a 23 minute session in 80 degree temps while shifting manually with 6,000 rpm red line. However, session was cut short by overheating of power steering unit.
Read about GM's recommended fix for overheating power steering unit and installed on my car. Have not experienced power steering overheat since that time.
In July of this year, experienced engine coolant overheating on short drives to and from work. Dealer diagnosed as faulty water pump. Pump was replaced under warranty. Have not experienced engine coolant overheating issues during normal street driving since that time.
However, I continue to run into high engine coolant temperature issues on track. After the water pump was replaced, I participated in a track day at Blackhawk Farms. With ambient temperatures below 80 degrees in the morning, my car was able to complete three twenty minute sessions. After cooling for approximately 2 hours over the lunch break, I went out for my first session of the afternoon. I received the idle engine to reduce coolant temperatures warning after running for 13 minutes in 83 degree temperatures while shifting the A8 manually with a 6,000 redline. An issue that may have contributed to the overheating in this case was that I purchased fuel from the track during the lunch break. The track fuel was 93 octane but 100% gasoline rather than the 90% gasoline / 10% ethanol that one normally gets at the pump.
After completing 1,500 mile break in, switching to 15w50, and changing differential fluid ran car on track for first time at Autobahn Country Club in Joliet, IL. While shifting A8 manually and using a red line of 6,000 rpm received warning to idle engine to reduce coolant temp after running for less than 15 minutes in 73 degree temperatures. Made an appointment with dealer for diagnosis. Dealer found no problems with car. Changed coolant mixture to 80% water / 20% anti-freeze. On next visit to track, received warning to idle engine to reduce coolant temp after less than 15 minutes in 75 degree temps. Upgraded to Ron Davis radiator and added DEI heat blankets over catalytic converters and oil lines. Car was then able to run a 23 minute session in 80 degree temps while shifting manually with 6,000 rpm red line. However, session was cut short by overheating of power steering unit.
Read about GM's recommended fix for overheating power steering unit and installed on my car. Have not experienced power steering overheat since that time.
In July of this year, experienced engine coolant overheating on short drives to and from work. Dealer diagnosed as faulty water pump. Pump was replaced under warranty. Have not experienced engine coolant overheating issues during normal street driving since that time.
However, I continue to run into high engine coolant temperature issues on track. After the water pump was replaced, I participated in a track day at Blackhawk Farms. With ambient temperatures below 80 degrees in the morning, my car was able to complete three twenty minute sessions. After cooling for approximately 2 hours over the lunch break, I went out for my first session of the afternoon. I received the idle engine to reduce coolant temperatures warning after running for 13 minutes in 83 degree temperatures while shifting the A8 manually with a 6,000 redline. An issue that may have contributed to the overheating in this case was that I purchased fuel from the track during the lunch break. The track fuel was 93 octane but 100% gasoline rather than the 90% gasoline / 10% ethanol that one normally gets at the pump.
Last edited by peterjank; 08-15-2017 at 05:12 PM.
The following 2 users liked this post by peterjank:
forcewindu (07-01-2018),
SkyKing421 (05-19-2020)
08-16-2017, 06:33 PM
#89
Race Director
Ahhh Chevy service............ So after having my car for 7 full days I get a call today that it is "ready".
Remember this post from last Friday?-
So today I am told something to the effect of- We really have trouble with GM when it comes to replacing parts, after a lengthy discussion with them your car was determined to only need a flush and reprogram.
So, a full week to flush and reflash the computer? After I was told it needed a new converter? Glad I'm getting the car back but worried now it is not really fixed properly. I guess my 3k mile road trip coming up will let me know......
Remember this post from last Friday?-
So, a full week to flush and reflash the computer? After I was told it needed a new converter? Glad I'm getting the car back but worried now it is not really fixed properly. I guess my 3k mile road trip coming up will let me know......
Last edited by tail_lights; 08-16-2017 at 06:35 PM.
The following 2 users liked this post by tail_lights:
Riderover50 (11-27-2017),
speedz06 (01-13-2023)
08-16-2017, 06:45 PM
#90
Ahhh Chevy service............ So after having my car for 7 full days I get a call today that it is "ready".
Remember this post from last Friday?-
So today I am told something to the effect of- We really have trouble with GM when it comes to replacing parts, after a lengthy discussion with them your car was determined to only need a flush and reprogram.
So, a full week to flush and reflash the computer? After I was told it needed a new converter? Glad I'm getting the car back but worried now it is not really fixed properly. I guess my 3k mile road trip coming up will let me know......
Remember this post from last Friday?-
So today I am told something to the effect of- We really have trouble with GM when it comes to replacing parts, after a lengthy discussion with them your car was determined to only need a flush and reprogram.
So, a full week to flush and reflash the computer? After I was told it needed a new converter? Glad I'm getting the car back but worried now it is not really fixed properly. I guess my 3k mile road trip coming up will let me know......
08-16-2017, 07:11 PM
#91
Melting Slicks
I rather have the car in my garage. Sounds like tail_lights car was just sitting there for a week waiting for the dealer to call GM.
Last edited by djnice; 08-17-2017 at 03:13 PM.
The following users liked this post:
tail_lights (08-23-2017)
08-16-2017, 09:09 PM
#92
Le Mans Master
someone who's looking to buy would like hear REAL issues. If it hurt your feelings...walk away!
Last edited by timmyZ06; 08-16-2017 at 09:10 PM.
The following 6 users liked this post by timmyZ06:
Dads2kconvertible (01-19-2022),
DebRedZR1 (08-22-2017),
DocScott (01-26-2019),
JLinCA (06-20-2022),
legacypgmr (01-14-2022),
and 1 others liked this post.
08-17-2017, 12:58 AM
#93
Melting Slicks
I am posting the status/resolution of my issues.
A connector that includes pins for GMLAN located on the frame to the right of the transmission was improperly seated. Basically the connector was cleaned and reconnected. I have driven hard for over 500 miles and so far it appears this issue was resolved.
Drove hard on the race track and did not notice this issue. I think the rotors needed a more even coating of pad material.
If it drives good I don't even think about this one
2018 Z06 M7 2LZ 3,200 miles -
Service Parking Brake light, Service Rear Axle warning, and Rear Axle System off message. These started to occur at 700 miles. Overnight it resets and drives fine until it trips during normal highway driving at 90F temps and stopping for gas or something. No codes are set so dealer hasn't been able to diagnose it yet until I bring it in while it is tripped. That was supposed to happen today, but the car decided to behave.
Service Parking Brake light, Service Rear Axle warning, and Rear Axle System off message. These started to occur at 700 miles. Overnight it resets and drives fine until it trips during normal highway driving at 90F temps and stopping for gas or something. No codes are set so dealer hasn't been able to diagnose it yet until I bring it in while it is tripped. That was supposed to happen today, but the car decided to behave.
If it drives good I don't even think about this one
The following users liked this post:
forcewindu (07-01-2018)
08-17-2017, 07:50 AM
#94
Team Owner
Member Since: Sep 2005
Location: Big Bend Country, TX
Posts: 29,114
Received 2,186 Likes
on
1,337 Posts
St. Jude Donor '06-'07-'08-'09-'10-'11-'12-'13-'14-'15- '16-'17-‘18-‘19-'20-'21
NCM Lifetime Member
I must be blessed. Second Z06 and no issues. Already over 6k in 6 weeks of ownership.
08-18-2017, 09:06 PM
#95
CEL is now flashing. Great. (2016 A8 and under 1900 miles and just got the rear diff replaced)
Just let into the throttle a little bit on an on ramp probably went just over (4500 rpm's) and started flashing at me. Eventually stopped flashing after about a minute- was about to pull into a parking lot and shut it off.
I mentioned in a previous post that this was the first thing I took this car in for was CEL flashing. Over 150 misfires in cylinder #3 and some in #1. They couldn't find anything wrong.
Not the greatest experience with this car so far. Love it but I don't want to lose faith in it.
Just let into the throttle a little bit on an on ramp probably went just over (4500 rpm's) and started flashing at me. Eventually stopped flashing after about a minute- was about to pull into a parking lot and shut it off.
I mentioned in a previous post that this was the first thing I took this car in for was CEL flashing. Over 150 misfires in cylinder #3 and some in #1. They couldn't find anything wrong.
Not the greatest experience with this car so far. Love it but I don't want to lose faith in it.
Last edited by Krazy; 08-18-2017 at 09:07 PM.
08-20-2017, 11:10 AM
#96
The good news is no more overheating after GM installed the second radiator!
but P1101 is back on track at WOT with total loss of power...
but P1101 is back on track at WOT with total loss of power...
The following users liked this post:
DebRedZR1 (08-22-2017)
08-21-2017, 01:21 PM
#97
This thread makes me a little nervous.
I may be looking to order a 2018 Z06 w/Z07 package A8 in the early quarter next year, and reading these issues makes me a bit uneasy. I don't want to pay that much money for a brand new car that would need to go back to the shop because of one of these reasons listed here.
Plus, I'm, really fussy with my vehicles and do not like leaving it at the dealership at all. Or, even bringing it back there for any service for that matter.
Hopefully the 2018's have less of issues and GM gets them figured out.
Thanks for creating this thread. Very helpful.
I may be looking to order a 2018 Z06 w/Z07 package A8 in the early quarter next year, and reading these issues makes me a bit uneasy. I don't want to pay that much money for a brand new car that would need to go back to the shop because of one of these reasons listed here.
Plus, I'm, really fussy with my vehicles and do not like leaving it at the dealership at all. Or, even bringing it back there for any service for that matter.
Hopefully the 2018's have less of issues and GM gets them figured out.
Thanks for creating this thread. Very helpful.
The following 2 users liked this post by tones_Z:
BosqueVette98 (11-30-2023),
forcewindu (07-01-2018)
08-21-2017, 01:25 PM
#98
This thread makes me a little nervous.
I may be looking to order a 2018 Z06 w/Z07 package A8 in the early quarter next year, and reading these issues makes me a bit uneasy. I don't want to pay that much money for a brand new car that would need to go back to the shop because of one of these reasons listed here.
Plus, I'm, really fussy with my vehicles and do not like leaving it at the dealership at all. Or, even bringing it back there for any service for that matter.
Hopefully the 2018's have less of issues and GM gets them figured out.
Thanks for creating this thread. Very helpful.
I may be looking to order a 2018 Z06 w/Z07 package A8 in the early quarter next year, and reading these issues makes me a bit uneasy. I don't want to pay that much money for a brand new car that would need to go back to the shop because of one of these reasons listed here.
Plus, I'm, really fussy with my vehicles and do not like leaving it at the dealership at all. Or, even bringing it back there for any service for that matter.
Hopefully the 2018's have less of issues and GM gets them figured out.
Thanks for creating this thread. Very helpful.
The following users liked this post:
speedz06 (01-13-2023)
08-21-2017, 01:32 PM
#99
Race Director
This is so very true. I had a similar conversation with a fellow C7 owner at a car show this past Saturday. Don't be worried about the sky is falling.
Last edited by Thomasmoto; 08-21-2017 at 01:32 PM.
08-22-2017, 07:27 PM
#100
Cylinders #1 and 3 with misfires, just like last October.
:|
Dealership was in contact with GM and they apparently said they don't know of anymore issues similar, so nothing will be done at this time. I think there are some posts in here from Stingray owners who had misfires due to plug wires.
Not sure what to think right now. On one hand it's happened twice within about 10 months (CEL flashing, that is) and it never idled rough or dealt like an odd loss of power. On the other hand I'd like for some resolution to it (such as faulty wires/coil/etc.). Will try to enjoy the car for the time being and if the issue pops up again I'll raise some **** directly to GM.
:|
Dealership was in contact with GM and they apparently said they don't know of anymore issues similar, so nothing will be done at this time. I think there are some posts in here from Stingray owners who had misfires due to plug wires.
Not sure what to think right now. On one hand it's happened twice within about 10 months (CEL flashing, that is) and it never idled rough or dealt like an odd loss of power. On the other hand I'd like for some resolution to it (such as faulty wires/coil/etc.). Will try to enjoy the car for the time being and if the issue pops up again I'll raise some **** directly to GM.