Q: The temperature gauge in the dash remains on COLD...never heats up. causing the engine to knock/ping under accelleration

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basically...the temperature gauge in the dash never shows the engine heating up. after this started happening, the engine began to knock and ping under acceleration...never did that before.

My car has 177000 miles.
My car has an automatic transmission.

Hi Brett. Thanks for the question today. I’m not completely sure that the temperature gauge failure and the engine pinging systems are related. In most cases, the temperature gauge failure is caused by a water temperature sensor failure. It is possible when the sensor failure for the cooling fan to have difficulty activating, which can cause overheating damage. In most cases, engine pinging is caused by lack of lubrication of upper cylinder head components or loose cylinder head parts. It’s probably best to have a professional mechanic come to your location and inspect the vehicle to determine what’s causing the noise first and why the temperature gauge is not working.

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