05-16-2022, 10:49 AM | #1 |
Drives: 2016 Camaro SS Join Date: May 2022
Location: Alabama
Posts: 8
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Fluctuating Temp Gauge
Hello all. I've seen several threads pertaining to a zeroed out or "cold" temperature gauge and that usually being a faulty coolant temp sensor, but what about a gauge that only seems to be flopping back and forth?
Mine will sit around the standard 200-210 degrees, raise up, and then fall back down. It'll do that several times before rising up to the 260 range and the car alert going off. Typically, I've shut the car off either right as this happens or before. When I turn it back on, it'll sit at the normal mark again and repeat the process. Could this also be a simple switch of the sensor? Or is this more indicative of the thermostat malfunctioning? |
05-16-2022, 11:10 AM | #2 |
Drives: 2017 2SS, 50th pkg, M6, MRC, NPP Join Date: Jan 2016
Location: Ocean City, NJ
Posts: 3,181
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05-16-2022, 11:49 AM | #3 |
Drives: 2020 LT1 M6 Join Date: Jan 2016
Location: South, the DEEP south
Posts: 1,114
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There could also be air in the system if you had the coolant changed recently.
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05-16-2022, 12:51 PM | #4 |
Drives: 2016 Camaro SS Join Date: May 2022
Location: Alabama
Posts: 8
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Interesting. It's only a $20 part so I guess worth it to change and see. From videos it looks like it's reachable with an extension and swivel. Is that the case as far as you know?
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05-16-2022, 12:52 PM | #5 |
Drives: 2016 Camaro SS Join Date: May 2022
Location: Alabama
Posts: 8
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No changes to the coolant system in the couple months I've owned and this just started. Though, I will say the fan has been running in the "louder than you'd think it should" state since I bought it. I'll also say, the reservoir doesn't appear to be to the fill line
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05-17-2022, 09:01 AM | #6 | |
Drives: 2017 2SS, 50th pkg, M6, MRC, NPP Join Date: Jan 2016
Location: Ocean City, NJ
Posts: 3,181
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Quote:
I'll see if i can find the chart in the repair manual. But charts for 10k thermistors are all over the web. This one's in celsius: https://cdn.shopify.com/s/files/1/02...g?v=1588786764 Here's the chart from the repair manual: SPECIFICATIONS > TEMPERATURE VERSUS RESISTANCE - ENGINE COOLANT TEMPERATURE SENSOR Temperature Resistance 150°C (302°F) 42 to 44 Ω 140°C (284°F) 53 to 57 Ω 130°C (266°F) 68 to 72 Ω 120°C (248°F) 88 to 92 Ω 110°C (230°F) 114 to 120 Ω 100°C (212°F) 151 to 159 Ω 90°C (194°F) 203 to 215 Ω 80°C (176°F) 275 to 293 Ω 70°C (158°F) 379 to 405 Ω 60°C (140°F) 532 to 572 Ω 50°C (122°F) 762 to 824 Ω 45°C (113°F) 921 to 997 Ω 40°C (104°F) 1118 to 1212 Ω 35°C (95°F) 1366 to 1484 Ω 30°C (86°F) 1683 to 1829 Ω 25°C (77°F) 2088 to 2266 Ω 20°C (68°F) 2608 to 2828 Ω 15°C (59°F) 3289 to 3567 Ω 10°C (50°F) 4182 to 4532 Ω 5°C (41°F) 5356 to 5800 Ω 0°C (32°F) 6914 to 7484 Ω -5°C (23°F) 8994 to 9732 Ω -10°C (14°F) 11796 to 12762 Ω -15°C (5°F) 15589 to 16871 Ω -20°C (-4°F) 20791 to 22517 Ω -30°C (-22°F) 37991 to 41273 Ω -40°C (-40°F) 72230 to 78834 Ω Last edited by ctrlz; 05-17-2022 at 09:29 AM. |
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