Specific overheating question (not a rant)
Thread Starter
Le Mans Master
Joined: May 2000
Posts: 8,729
Likes: 1,508
From: Redmond WA
Specific overheating question (not a rant)
I saw on one of the other innumerable overheating threads a reference to stop and go driving. That was news to me.
Are people really seeing uncontrolled temps in stop and go driving in hot ambient weather (like 90, 100, 110F)?
I'm not sure if people are just embellishing the problem - it seems highly unlikely that GM would ship -any- car that doesn't pass the basic driving scenarios. That's very different than shipping a street car marketed as a track car that overheats under hard track use.
We/you might not like the track situation but that's not what I'm asking about, so please, please leave track issues to the other 99 threads, I'm just talking about traffic. I don't want to dilute this thread to uselessness.
Are people really seeing uncontrolled temps in stop and go driving in hot ambient weather (like 90, 100, 110F)?
I'm not sure if people are just embellishing the problem - it seems highly unlikely that GM would ship -any- car that doesn't pass the basic driving scenarios. That's very different than shipping a street car marketed as a track car that overheats under hard track use.
We/you might not like the track situation but that's not what I'm asking about, so please, please leave track issues to the other 99 threads, I'm just talking about traffic. I don't want to dilute this thread to uselessness.
Instructor
Joined: Jan 2015
Posts: 233
Likes: 20
From: Johnston IA
I think it depends on the car I personally have had no overheating issues with mine but I believe the people who have had issues need a resolution and it needs addressed by GM for all of the cars
Melting Slicks
Joined: Oct 2007
Posts: 2,398
Likes: 858
I saw on one of the other innumerable overheating threads a reference to stop and go driving. That was news to me.
Are people really seeing uncontrolled temps in stop and go driving in hot ambient weather (like 90, 100, 110F)?
I'm not sure if people are just embellishing the problem - it seems highly unlikely that GM would ship -any- car that doesn't pass the basic driving scenarios. That's very different than shipping a street car marketed as a track car that overheats under hard track use.
We/you might not like the track situation but that's not what I'm asking about, so please, please leave track issues to the other 99 threads, I'm just talking about traffic. I don't want to dilute this thread to uselessness.
Are people really seeing uncontrolled temps in stop and go driving in hot ambient weather (like 90, 100, 110F)?
I'm not sure if people are just embellishing the problem - it seems highly unlikely that GM would ship -any- car that doesn't pass the basic driving scenarios. That's very different than shipping a street car marketed as a track car that overheats under hard track use.
We/you might not like the track situation but that's not what I'm asking about, so please, please leave track issues to the other 99 threads, I'm just talking about traffic. I don't want to dilute this thread to uselessness.
OAT ranging from 85-93* so far with no problems.
Never saw the temps get above 215ish.
There were a few folks that ran into problems on public roads in traffic but as I understand it those were bad thermostat issues?
Understand folks are having problems but the results seem to be very inconsistent. Even on the track some are having issues others are not.
Pro
Joined: May 2015
Posts: 677
Likes: 151
From: SoCal
When I picked mine up I drove the 405/710/91 out of LA into the IE and I never got above 11mph for almost 2 hours (temp in low 80's) and I did not have an issue. On a side note, is there a link that has the "normal" operating temps that should be expected. I have a link that shows a pic of maximum operating temps but would like to have a good idea of what is considered normal for all readings on the Z06
Tech Contributor
Joined: Mar 1999
Posts: 10,445
Likes: 4,403
From: Northern VA
"Ask Tadge" Producer
The article referenced talks about cooling issues on the street when driven aggressively in hot temperatures with the front plate installed. I see in the picture of the Edmunds long term test, the car has a front plate in what we call the "show" position and so when driven very aggressively had insufficient cooling. As discussed in the owner's manual, this panel is "to be removed when driving aggressively or in hot weather". All cars shipped to states that require front plates also have a plate frame that mounts higher on the bumper and does not block as much of the cooling flow.
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Melting Slicks
Joined: Aug 2003
Posts: 2,245
Likes: 2,176
From: Cary NC
Mine doesn't show even a hint of overheating in traffic.
It's been getting into the high 80's here. With a few drives already in 20 to 30 minutes of traffic, my coolant, oil, and tranny temps do not move at all. I have all three displayed on my dash, as I was curious about this as well.
The overheating-in-traffic threads sound a lot like air in the cooling system. I fought with this with my C5Z for a month or so last year, and it can be hard to find and eliminate.
It's been getting into the high 80's here. With a few drives already in 20 to 30 minutes of traffic, my coolant, oil, and tranny temps do not move at all. I have all three displayed on my dash, as I was curious about this as well.
The overheating-in-traffic threads sound a lot like air in the cooling system. I fought with this with my C5Z for a month or so last year, and it can be hard to find and eliminate.
Safety Car
Joined: Nov 2012
Posts: 4,737
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From: North California
Racer
Joined: Oct 2014
Posts: 263
Likes: 8
I strongly suspect that reports of overheating in traffic on street are due to manufacturing / configuration defects (i.e., normal "stuff happens" problems)-- in other words: not working as designed. Whereas the track overheating problems seem to be from a design defect/decision: working exactly as designed.
Instructor
Joined: Nov 2014
Posts: 215
Likes: 33
I strongly suspect that reports of overheating in traffic on street are due to manufacturing / configuration defects (i.e., normal "stuff happens" problems)-- in other words: not working as designed. Whereas the track overheating problems seem to be from a design defect/decision: working exactly as designed.
Considering you've only seen one thread on overheating in regular driving conditions, you can bet it's an isolated issue. If there was an engineering fault inherent to the car, you can bet there would be dozens of threads on the issue. All new cars can have this problem simply due to a part failure (thermostat) or a line worker having a bad day.