Temp Guage Drops, Fans On Full

lonewolf411 · 11-05-2021, 01:31 PM

Im having a problem where my temperature guage will drop all the way to zero, the fans will run on high (sounds like a fighter jet taking off) and the Rev-match will turn off. I've had my engine temperature sensor replaced and my mechanic has traced the wires and hasn't found any that are worn or broken. Randomly the temperature will start reading again, usually on the highway driving a consistent speed. It will last a day or two reading the temperature and the problem will start again for a day or two. It's a repeating cycle that is getting out of hand. Has anyone had this problem before?

MANNAXMAN · 11-05-2021, 02:46 PM

There are several threads on this issue. I've experienced it myself. For me, replacing the thermostat fixed the problem. Others have replaced the temp sensor.

SSUNDVL · 11-05-2021, 05:15 PM

Temp sensor forsure, I have had it happen when arriving at a hockey game and car's fan just kept running after I turned car off. Luckily I had my nguage as the sensor throws a code (non CEL), cleared it and temp gauge read correct and fans shut off.

lonewolf411 · 11-06-2021, 05:33 PM

Thank you! I will be replacing both just to make sure.

wal-dog · 11-10-2021, 03:38 PM

Yep. Temp sensor and thermostat will fix it. Do them both at once. Both are cheap and easy to change.

Andy2002a · 11-16-2021, 11:55 AM

Clearing the stored codes on the ECU (no CEL is shown) should make the sensor work again. Thermostat seems to be the root cause.

11-05-2021, 01:31 PM	#1
lonewolf411 Drives: 2016 2SS Join Date: Sep 2018 Location: New Jersey Posts: 20	Temp Guage Drops, Fans On Full Im having a problem where my temperature guage will drop all the way to zero, the fans will run on high (sounds like a fighter jet taking off) and the Rev-match will turn off. I've had my engine temperature sensor replaced and my mechanic has traced the wires and hasn't found any that are worn or broken. Randomly the temperature will start reading again, usually on the highway driving a consistent speed. It will last a day or two reading the temperature and the problem will start again for a day or two. It's a repeating cycle that is getting out of hand. Has anyone had this problem before?

11-05-2021, 02:46 PM	#2
MANNAXMAN Drives: 2016 Camaro 2SS Convertible Join Date: Sep 2016 Location: SF Bay Area Posts: 565 View My Garage	There are several threads on this issue. I've experienced it myself. For me, replacing the thermostat fixed the problem. Others have replaced the temp sensor. __________________ 2016 Camaro 2SS, Convertible, Summit White, A8, NPP, NAV, Daily Driver (Sept. 2016-Present) 1996 Camaro Z28 with T-Tops (Sold 10.22.16) 1986 Camaro IROC-Z with T-Tops (Sold) 1961 Volkswagen Beetle with Sliding Ragtop Sunroof (2009-Present) 1964 Volkswagen Beetle with aftermarket Sliding Ragtop Sunroof (Sold) Follow me on *Instagram* - @gen6_2ss_vert

11-05-2021, 05:15 PM	#3
SSUNDVL Drives: 2016 Camaro SS Join Date: Jul 2020 Location: Dallas, TX Posts: 149	Temp sensor forsure, I have had it happen when arriving at a hockey game and car's fan just kept running after I turned car off. Luckily I had my nguage as the sensor throws a code (non CEL), cleared it and temp gauge read correct and fans shut off.

11-06-2021, 05:33 PM	#4
lonewolf411 Drives: 2016 2SS Join Date: Sep 2018 Location: New Jersey Posts: 20	Thank you! I will be replacing both just to make sure.

11-10-2021, 03:38 PM	#5
wal-dog Drives: 2016 Garnet Red 1SS Join Date: Feb 2011 Location: Tucson Posts: 208	Yep. Temp sensor and thermostat will fix it. Do them both at once. Both are cheap and easy to change.

11-16-2021, 11:55 AM	#6
Andy2002a Drives: n/a Join Date: Jul 2018 Location: Mia Posts: 64	Clearing the stored codes on the ECU (no CEL is shown) should make the sensor work again. Thermostat seems to be the root cause.

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