wlittle49

After having the engine temp run up to 260 while stuck in a traffic jamb I knew to shut down and restart thanks to this forum. This is the fan controller problem unique to 2014 Stingray's. The dealer could not find a code in the computer and could not duplicate the problem, therefore no fix. Did not expect them to find anything since this is a transient issue. So, the fix is for me to buy and install the Z06 600 watt radiator fan, GM part 23376530.

Problem is no internet vendor has these in stock and all vendors are ordering them from GM. Furthermore, they are back ordered with GM parts and it may be months before they are available again according to some websites.

Question is, does anyone know where one of these might be in stock? Thanks

wlittle49

John, that link takes me to a national driving school. Bogus.

eboggs_jkvl

The fan controller goes spastic and doesn't turn the fan on after you've been cruising on the interstate and hit a traffic snarl. The temp fix is as you said, turn off the car and restart it, fan comes on and you're golden (until the next time).

Try sdparts.com Scoggin Dickey

Order Details:

------------------------------------------------------------------------

Quantity: 1

Item: Chevrolet Performance 23376530 - C7 Corvette Z06 600-Watt

Radiator Fan (23376530)



Unit Price: $325.17

Total Price: $325.17

------------------------------------------------------------------------

subtotal: $325.17

------------------------------------------------------------------------

total: $325.17


It appears to be in stock. Search for 23376530



Elmer

wlittle49

Scoggin Dickey charged my cc two weeks ago and I heard nothing. Called yesterday and after 30 minutes of holding was told it was on back order from GM and might be three days or three months. Nobody I have contacted actually has this part in stock but they are not bashful about charging your card.

eboggs_jkvl

Well crap! That was my only source, sorry.

cowboy casey

I bought mine from GMPartsGiant.com at $324 with shipping, best deal I could get.. https://www.gmpartsgiant.com/parts/g...-23376530.html

I just replaced it myself.. This is my second 2014 C7 and they both needed changed... I was able to get my first one changed under my extended warranty but my dealer is really good and stated the fan was bad even though nothing showed up on the scan.. I was able to show the service manager and a tech that it was overheating by driving over 50 miles and pulling into the service bay and letting it overheat in front of them

marsheng

Try# 84128344 which is 2018 Z06 600 watt fan ,plug and play and had it in a few days ,Could not seem to source 23376530 in Canada.

Red86Cfour

I was under the impression this was a fan only issue. Now in this thread the fan controller is being blamed. Does the higher wattage Z06 fan also include a different fan controller? Because if it doesn't, how does just a different fan fix the problem if the controller isn't smart enough to turn on the fan?

wlittle49

It is all made together. You can't change the controller without changing the fan. Rather than replacing the OEM fan/controller you upgrade to the Z06 fan/controller. IF you can find one.

TPAJETSKI

Is this a common issue? Seems like a couple of these posts have popped up with the 14s. How difficult is it to swap out the fans? I might do it as preventative maintenance.

wlittle49

Well it is not common enough that GM has published a bulletin or anything acknowledging the issue. I first read about it here and it seems to be confined to 2014 Stingray's. Fortunately because of reading of it here I knew what to do when it happened to me. We had a construction delay in 80 degree weather and about 20 minutes of sitting on the interstate it shot to 260. The strange thing is when I took it to the dealer there was no code when scanned. Other post have said it recurs infrequently and up to 12 to 18 months apart. Guess it depends on how many times you are stuck in traffic for long periods in hot wx.

eboggs_jkvl

When I was blessed with the 2nd heating event, I ordered the fan/controller and did it in my garage in about an hour.

Scroll to post #29 Instructions: https://www.corvetteforum.com/forums...-to-260-a.html


Elmer

Red86Cfour

Ok cool that makes sense thanks for the reply. I couldn't figure out why just a fan swap would fix the problem. Getting the new controller along with the fan makes sense. Fortunately the quick fix is a shutdown and restart to reset the controller back to reality!

patriotpa

You could also wire in an auxiliary temp sensor that would kick the fan on.
https://www.summitracing.com/parts/flx-31147/overview/

Set it high. The stock controller would run the fan as needed, with the aux controller kicking in when it starts to get too hot. <$50 fix.

cowboy casey

I do not believe it is the temp sensor as it is already calling for the fan to turn on by sending 12 volts to the fan controller.. The fan works by the amount off voltage sent to it.. 6 volts = 50% fan and so on, as I understand it by the tech explaining what it is suppose to be doing.. The actual controller is "sleeping" and even though it receives the 12 volts for the fan to go 100% it simply does not turn on... once you restart the vehicle it wakes it up and immediately turns the fan on at 12 volts=100% ...

Since I have changed out my last car and this new car both 2014's I have had no issues.. I do find it funny that GM only sells the "upgraded Z06 fan" to 2014 owners, seems they have known about the problem.. I would bet they changed fan manufactures in 2015...

RapidC84B

It's a rare 2014-only glitch with the fan controller. Dealer WILL NOT be able to replicate even with TECH II programmer. Buy the updated 600 watt fan assembly which is plug and play and comes with new wiring harness attached. The fan controller is in the electrical connector on the harness.

Ruined my Hot Rod Power Tour in 2018 due to this issue coming up. They had GM techs on the tour and the car passed every GM test with the tech II. But then after being on the highway for 10-15 minutes and coming off, the fans wouldn't turn on... had to restart the car to get them to kick on. It was nerve wracking in big city traffic. Ended up bailing early and limping the car home.

wick

My recently purchased 2015 Z-51 has overheated twice now this month, both at stops for accident and a drive thru . Once I got airflow it went back to normal. Took it into dealer, explained everything, no codes stored, I had video of temp gauge and engine running with no fan turning, I think my service rep passed on my video and my statement to the insurance company that a fan replacement will be cheaper than a new engine. I think they agreed, parts on order, no time frame for delivery.

sjw91

Just curious what the difference is between the 2014 Stingray fan and the 2015-19 Stingray fans? The recommended solution is always to install a Z06 fan, but no one ever mentions a later Stingray part. Did all the cars get the Z06 fan after 2015?

This recently happened to my friend's 2014, so I was looking into it. Everyone with a 2014 says their normal operating temperature is 220. My 2019 is normally around 200. So something changed.

wick

Good question. When I took my 2015 in this week and a new fan was authorized, I told the service rep I wanted the Z 06 fan, I gave him the GM part # and said if their was a difference in price that I would pay it..When he called back, he said the part # that I gave him WAS the replacement for the stingray, so I am guessing they are now going with one fan.

wlittle49

The dash indicated temp of 220 on the 2014 is incorrect. That gauge is set to that temp and the actual is somewhere around 195. Scroll through your display settings and you can find the actual temp readout. Those gauges to from cold to 220 and sit there and this is a known issue. It was corrected after 2014 with a sensor that reads correctly.