Warning lights can be life and money savers for car owners, but there are a couple of non-light signs to watch out for that may signal your engine coolant temperature sensor is faulty.

Low Coolant Levels. It is essential to check your coolant levels regularly and keep them at an optimum level. A low coolant level allows air into the system, and this causes the temperature sensor to ...

A faulty Engine Coolant Temperature (ECT) sensor may lead the turbocharged 2.0L I4 LSY gasoline engine in certain GM vehicles to run hot or even overheat.. GM says some 2019-2022 model year Buick ...

The sensor is typically located in the coolant reservoir, radiator, or engine block. When the engine is running, the sensor continuously measures the coolant level. If the sensor detects a significant ...

Coolant should begin to cycle through the engine and if there’s air trapped in the system, it will burp up the air. Let the car idle until warm, which may take 15 to 20 minutes.

The engine coolant temperature sensor may be cracked. This could cause the enging coolant temperature warning light to come on inadvertently and in rare cases may cause engine operating faults.

Engine coolant temp, oil pressure, and voltmeters were all perhaps a bit too accurate unless you really cared what was going on. 1997 was one of the last years for the accurate temp gauges, I ...

GM has issued a TSB to address an issue with the engine coolant pipe on certain Chevy Blazer, GMC Acadia, Cadillac XT4 and Cadillac XT5 crossover models.

Editor’s note: This article was last updated on May 30, 2021. It has been reviewed by Cars.com Senior News Editor Jennifer Harrington and is still accurate. Though coolant and antifreeze are ...