12-08-2021, 04:38 PM | #1 |
Coolant temperature high? Radiator fan turns on after warm up
Yesterday I was driving the car and noticed my radiator fan was on high. I have an aeroforce gauage and when I looked at the coolant temperature it was at 215+. When I come to a stop and idle the temperature would come down to 206-208 range and rise again when I start driving again. What's weird is the temperature always stayed around 180 even in 100° weather during the summer and now that it's in the 40s this is happening. Coolant is full and I installed a 160° thermostat when I installed my Procharger in June. The gauge on the dash never exceeds 200° despite the Aeroforce gauge showing above 210....could I have a bad thermostat already? Any ideas would be great.
Thanks
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2017 Camaro 1SS
Procharger P1X Stage 2 intercooler |
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12-08-2021, 06:48 PM | #2 |
376 cubic inches of fun
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The first step in any over-heating diagnosis is a pressure check. If your system is not holding pressure, it will continue to lose coolant and overheat. A lower temp thermostat does nothing to fix overheating and boiling off. All it does is open the flow to the radiator.
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12-08-2021, 07:28 PM | #3 |
Drives: Camaro 1SS A8 Vert Join Date: Sep 2018
Location: Tx
Posts: 303
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Sounds like the thermostat is stuck open
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12-08-2021, 11:51 PM | #4 | |
Quote:
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2017 Camaro 1SS
Procharger P1X Stage 2 intercooler |
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12-09-2021, 08:33 AM | #5 |
Drives: Camaro 1SS A8 Vert Join Date: Sep 2018
Location: Tx
Posts: 303
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If the thermostat is sticking open the coolant doesn't have time to slow down in the radiator to cool. That is why when you giving it more RPM it is getting hotter.
I would put the Katech 174 thermostat in. https://shop.katechengines.com/produ...SAAEgLDzfD_BwE |
12-09-2021, 04:03 PM | #6 | |
Quote:
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2017 Camaro 1SS
Procharger P1X Stage 2 intercooler |
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12-10-2021, 08:13 AM | #7 |
Drives: Camaro 1SS A8 Vert Join Date: Sep 2018
Location: Tx
Posts: 303
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Anytime
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12-10-2021, 06:15 PM | #8 |
Well it wasn't the temp sensor as I just changed it and same condition. I'll try the thermostat when it comes in and hopefully that solves it...
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2017 Camaro 1SS
Procharger P1X Stage 2 intercooler |
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12-11-2021, 01:19 AM | #9 |
Looks like after finally finding the answer the problem is indeed the Mishimoto 160° thermostat I installed......Katech 174° will be here Tuesday!
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2017 Camaro 1SS
Procharger P1X Stage 2 intercooler |
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12-13-2021, 10:58 AM | #10 |
Drives: Camaro 1SS A8 Vert Join Date: Sep 2018
Location: Tx
Posts: 303
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Good Deal..
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12-13-2021, 12:22 PM | #11 | |
Thank you Al Oppenheiser!
Drives: Red Hot A10 ZL1 Convertible Join Date: Jun 2017
Location: Sarasota, FL
Posts: 4,973
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Quote:
Glad you got it sorted out. |
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12-13-2021, 12:24 PM | #12 |
Yeah, pretty upset about this but at least it's a cheap fix and nothing has been damaged. The new Thermostat comes tomorrow and I'm looking forward to driving my car again. Need to change the supercharger oil also....
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2017 Camaro 1SS
Procharger P1X Stage 2 intercooler |
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12-14-2021, 11:00 AM | #13 | |
Drives: 2017 2SS, 50th pkg, M6, MRC, NPP Join Date: Jan 2016
Location: Ocean City, NJ
Posts: 3,177
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Quote:
If your temps were going above that, I suspect it was never fully opening. The behavior you describe sounds like it was sticking at different spots and never completely opening. Sounds like junk to me. |
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12-14-2021, 11:39 AM | #14 |
Drives: 2017 ZL1 Join Date: Jan 2017
Location: NJ
Posts: 905
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Katech t-stat all the way, I had another 180° fail on me in less than 2 years
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2017 Camaro ZL1 Coupe M6 (847whp Dynojet on 93)
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