The thermostat is probably set for 190 degrees and that is the point it opens at.
If the outside temperature gauge is not reading the right temperature on a Buick Regal, perhaps it has become damaged. It can also not read the right temperature if it is wet or covered with dirt or snow.
Most likely a bad sensor
Wandering fuel gauge on a 2003 regal
With a very big hammer
I need to know how to change the temperature gauge from Celsius to Fahrenheit on a 2012 Buick LaCrosse
The sending unit is likely faulty
you either have a diying battery or a ground short
You may have a faulty coolant level sensor
On a 1995 Buick LeSabre, the temperature gauge is located on the instrument cluster, which is situated on the dashboard behind the steering wheel. It typically appears as a dial or indicator, showing the engine coolant temperature. If you're looking for the actual temperature sensor, it is usually found near the engine, typically on the cylinder head or intake manifold.
first let me ask you to clarify. do you mean it reads low temp or that it reads lower then what the banks and the temp outside is???? I have the same problem on my 1998 Regal. The temperature gauge reads ~ 20 degrees lower than actual. Occasionally it will read correct, but not for long. I can't find any information as to where the sensor is, or the supporting cabling that will help me trobleshoot the problem. JJD Not compared to Banks, but actual temperature readings outside. For example, if it is 95 degrees outside, the regal says ~72 degrees. It used to read withing about 1 degree to the actual outside temp, but now it is at least 20 degrees lower. I have a 99 Buick Park Avenue Ultra, and my temperature gage was doing the same thing the dealer replaced the sensor, located on the left front of the radiator. They charged me $80.00, if I had known where and what to look for I could have done it for a lot less.
On the left side of the front dash by the reading gauge there is a nob that looks like an oven nob, turn the nob to the left to turn the lights on. Below that is the wheel to brighten or lessen the reading gauge panel.
Someone other than myself suggested to get a magnet (capable of lifting 50 lbs.) and run it over the gauge in the direction you wnat it to move.