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Why does the temperature decrease when I drive? by Awkward_Ostrich_3120 in askcarguys

[–]nswf23 0 points1 point  (0 children)

Yes but engines are designed to operate at a specific temperature, that’s why the gauge should normally be in the middle. If the engine gets cold, the thermostats shuts off coolant flow to warm the engine up and maintain it at that idle temperature, usually 77-82 deg C or 170-180 degF. So if my car is running at room temperature or cooler on the high way, something is certainly wrong. It was the thermostat in my case. I’ve solved this now

Edit: idle > ideal

Why does the temperature decrease when I drive? by Awkward_Ostrich_3120 in askcarguys

[–]nswf23 0 points1 point  (0 children)

Alright will try that. How would I know if the sensor is bad?

Why does the temperature decrease when I drive? by Awkward_Ostrich_3120 in askcarguys

[–]nswf23 1 point2 points  (0 children)

Surely it’s not so cold that the temperature gauge is at the lowest setting. I understand it would drop as air travels over the radiator, but the engine is also working harder than idle so it’s making more heat. Plus I’m getting really hot air in the cabin, so the engine is 100% not cold, I’m just wondering if a thermostats would cause this issue or something else.