
The coolant temperature gauge sensor on the Regal is positioned directly above the junction of the engine and transmission, on the side of the cylinder head. A faulty coolant temperature gauge sensor will cause the temperature gauge to remain at a fixed position, leading to incorrect judgments by the driver. A damaged coolant temperature sensor should be replaced promptly, as it can affect driving safety. Methods to address engine overheating are as follows: 1. Slow down immediately: After reducing speed, pull over to a safe area on the roadside; 2. Do not turn off the engine immediately: After stopping, avoid shutting down the engine right away, as excessively high coolant temperatures can cause overheating of components like pistons, cylinder walls, cylinders, and the crankshaft, thinning the engine oil and reducing lubrication. Turning off the engine may result in soft metal parts detaching or even cylinder sticking; 3. Let the engine idle for a few minutes: Adjust the air conditioning to the heating mode, set the fan to maximum, and open the hood to help dissipate heat. Only turn off the engine after the coolant temperature has dropped.

After driving the Buick Regal for so many years, I've realized the importance of the temperature sensor location inside the car, which is primarily used for the automatic temperature regulation of the air conditioning system. In my vehicle, it's hidden slightly below the center of the dashboard, near the air vents. Typically, it's a small probe extending from inside the center console, not easily visible directly, but you can find it once you remove the panel. Don't just focus on locating it; I also want to remind everyone that when the sensor fails, the air conditioning may malfunction, such as not cooling properly in summer or heating inadequately in winter, affecting comfort. During regular maintenance, using a soft brush to clean the vents can prevent dust from accumulating on the sensor. Finding its location is quite simple; you can also discover the external temperature sensor near the side mirror base when you open the hood. In short, when encountering issues, check first yourself—solving minor problems on your own saves money and hassle.

As someone who frequently repairs cars, I often help others deal with temperature sensor issues in the Buick Regal. The sensor is located near the air conditioning control unit, specifically in the vent area under the dashboard. You can feel the small probe by reaching up from the glove compartment. Don't just ask where it is—more importantly, avoid malfunctions. The sensor is prone to issues due to moisture or vibration, leading to false alarms or unresponsive air conditioning. During inspections, I use a multimeter to check if the resistance value is normal. If it's faulty, replacing the part is the easiest solution. The external sensor is located above the radiator in the engine bay. I recommend DIY enthusiasts regularly clean the vents to reduce blockages, which helps extend the sensor's lifespan. Only when the car is properly repaired will it run smoothly.

Nothing is more annoying than temperature imbalance while driving. The temperature sensor in the Buick Regal is located near the dashboard by the windshield, right around the air vent—you can easily spot its general position with a glance. The sensor mainly detects the in-car environment and sends signals to the air conditioning system. If it gets dirty or misaligned, it may affect the auto-mode settings. Finding it is easy—just lift the panel cover and check. If the AC starts blowing air randomly due to a malfunction, address it promptly. Don’t overlook maintenance—regular cleaning can prevent issues.


