Some advice
Thread Starter
Instructor
Joined: Aug 2017
Posts: 137
Likes: 17
From: Texas
Some advice
twice my 2013 M6 base model had really high coolant temps (240+) to where the a/c would stop blowing cold air, i checked the car and found the culprit. a plug that connects the fans was melted in the middle. plug has 3 wires. so what was happening was that it was not making a good connection and the fans were not turning on, causing coolant temps to go way up! cut off the plug, and hardwired it. and the car has been working fine now. 196 is the highest ill see it go before the fans drop it to 190. but i am very paranoid when i see it go above 196 lol.
my question is, what is the normal coolant temperature? before i had it hardwired i had seen 220 w/ a/c on in this hot texas weather (100 degrees). i just want some peace of mind and not be so paranoid the whole time and just monitoring coolant temp. it doesnt let me enjoy the ride as much. any advice would help, thanks in advance.
my question is, what is the normal coolant temperature? before i had it hardwired i had seen 220 w/ a/c on in this hot texas weather (100 degrees). i just want some peace of mind and not be so paranoid the whole time and just monitoring coolant temp. it doesnt let me enjoy the ride as much. any advice would help, thanks in advance.
Safety Car
Joined: Nov 2007
Posts: 4,446
Likes: 878
From: Bay Area CA
twice my 2013 M6 base model had really high coolant temps (240+) to where the a/c would stop blowing cold air, i checked the car and found the culprit. a plug that connects the fans was melted in the middle. plug has 3 wires. so what was happening was that it was not making a good connection and the fans were not turning on, causing coolant temps to go way up! cut off the plug, and hardwired it. and the car has been working fine now. 196 is the highest ill see it go before the fans drop it to 190. but i am very paranoid when i see it go above 196 lol.
my question is, what is the normal coolant temperature? before i had it hardwired i had seen 220 w/ a/c on in this hot texas weather (100 degrees). i just want some peace of mind and not be so paranoid the whole time and just monitoring coolant temp. it doesnt let me enjoy the ride as much. any advice would help, thanks in advance.
my question is, what is the normal coolant temperature? before i had it hardwired i had seen 220 w/ a/c on in this hot texas weather (100 degrees). i just want some peace of mind and not be so paranoid the whole time and just monitoring coolant temp. it doesnt let me enjoy the ride as much. any advice would help, thanks in advance.
Normal coolant temperature (with oem 187* T-stat) at highway speeds are 192-198*F. City driving or stuck in traffic 198- 220*+F depending on the air temperature. Even with 100* weather, ECT at 220* is normal in the city.
The stock fan setting 15% at 199*F and gradually increases with higher temps peaks at 90% once temps reach 224*F.
A/C on temps will run a little higher and the fan will increase speed as A/C pressure increases, but still maxes at 90%.
Last edited by Mike's LS3; Sep 13, 2017 at 11:35 AM.
Race Director
Joined: Dec 2002
Posts: 10,477
Likes: 1,155
From: Wayne Township WI
A burned fan connector causing overheating/high op temp isn't really rare, especially Corvettes driven in sunbelt states. Reported 3-6 times a year.
Found/fixed issue when connector was replaced & everything's fine, now.
Just like before overheating?
Team Owner
Joined: Aug 2006
Posts: 25,105
Likes: 3,156
C6 of Year Finalist (appearance mods) 2019
Common issue for the C6.
I see 194 to 200 on hwy here in N. Texas.
200 to 230 stuck in traffic.
On my 85 C4 the fans were programed to come on at 240 from the factory.
I see 194 to 200 on hwy here in N. Texas.
200 to 230 stuck in traffic.
On my 85 C4 the fans were programed to come on at 240 from the factory.
Thread Starter
Instructor
Joined: Aug 2017
Posts: 137
Likes: 17
From: Texas
yea, now that i think about it and read previous threads and saw comments on here its pretty normal. i have them hard wired for now, do you guys recommend just getting a new plug? or soldering them and keep it as is? also would anybody happen to know the part number for that plug? thanks in advance
Race Director
Joined: Dec 2002
Posts: 10,477
Likes: 1,155
From: Wayne Township WI
yea, now that i think about it and read previous threads and saw comments on here its pretty normal. i have them hard wired for now, do you guys recommend just getting a new plug? or soldering them and keep it as is? also would anybody happen to know the part number for that plug? thanks in advance
IIRC for those w/ this issue some soldered, some replaced connector.
The whys theirs so six of one half dozen the other.
Gene Cully @ Cultrag is a forum sponsor & go-to guy for most C6 parts. https://www.cultragfactoryparts.com/
Gene c/would provide correct connector should you decide to remain OEM.
Soldering becomes an issue if work's routinely done requiring fan/radiator removal.
Doesn't sound like you mess around there, so pick your poison.
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Thread Starter
Instructor
Joined: Aug 2017
Posts: 137
Likes: 17
From: Texas
Le Mans Master
Joined: May 2016
Posts: 7,355
Likes: 1,548
From: Florida
Here are two pics from mine, looking straight up you can see the bottom of the supercharger so it'll orient you where to look.
Last edited by BlindSpot; Sep 16, 2017 at 05:53 PM.
Le Mans Master
Joined: Sep 2014
Posts: 7,001
Likes: 988
From: lake havasu city arizona
Yep, I see it Steveo, in spite of that Heimholtz Air Box or whatever it called, damned thing is always in the way.
But as you said it looks pretty cherry from what I can see so I'll save the info just in case, thanks
But as you said it looks pretty cherry from what I can see so I'll save the info just in case, thanks