Is it normal for the outside temperature display to show over 50 degrees?
3 Answers
The outside temperature display showing over 50 degrees is not normal, as it significantly deviates from the actual temperature. Below is more information about temperature sensors: 1. Introduction: A temperature transducer (temperature sensor) refers to a sensor that can sense temperature and convert it into an available output signal. Temperature sensors are the core component of temperature measurement instruments. 2. Classification: According to measurement methods, they can be divided into contact and non-contact types. Based on sensor materials and electronic component characteristics, they are classified into thermistors and thermocouples. 3. Selection Method: To perform reliable temperature measurement, the first step is to choose the correct temperature instrument, i.e., the temperature sensor. Among them, thermocouples, thermistors, platinum resistance (RTD), and temperature ICs are the most commonly used temperature sensors in testing.
Lately while driving, I've been pondering this issue. The weather is scorching hot, and the temperature display on the dashboard occasionally jumps above 50°C. To be honest, at first I thought it was outrageous. After some research, I realized that when a car is parked under the sun for hours in summer, temperatures at the front can surge to alarming levels. The sensor is located there, surrounded by scorching metal and heat radiating from the asphalt. Usually, after driving for about ten minutes, the reading starts to drop. If it stays above 50°C for half an hour, something's wrong—maybe the sensor is clogged with mud or the front bumper was damaged and caused misalignment. After all, if it gives false readings, the automatic AC will go haywire too. Who can stand blasting hot air on a sweltering day? Better play it safe and get it checked with a diagnostic computer at the auto repair shop.
As an experienced auto repair technician, I've seen many car owners get alarmed by temperature readings. It's actually normal for the temperature to show over 50 degrees in specific scenarios, especially during the first few minutes after driving your car out from a sun-exposed parking lot. However, you need to observe its subsequent behavior: if the reading remains above 50 degrees after half an hour of driving, there's an 80% chance that the temperature sensor behind the front grille has been affected by exhaust fumes from the vehicle ahead, or there might be wiring issues caused during modifications. It's best to park in a shaded area, turn off the engine, wait five minutes, and then restart to check. If the reading remains more than two degrees higher than normal, it's time for an inspection, as this directly affects the accuracy of the automatic air conditioning. During repairs, we use heat guns to test sensor sensitivity, and in older cars, aging wiring can also cause persistent false readings.
