oil temp gauge what does it do

• 2022-07-28

The oil temperature sensor gauge is a monitoring device. Too high oil temperature indicates that the lubrication system of the car has failed and needs to be repaired. Too high oil temperature will dilute the lubricating oil, make it difficult to form oil film on each friction surface, and form semi dry friction or even dry friction, which will speed up the wear of various parts. Therefore, this sensor will be installed on some engines.Generally speaking, when the oil temperature of the transmission exceeds 150 ℃, the torque converter will be automatically locked, and it will be induced once after 30 seconds. If the oil temperature is still high, the overdrive will be locked to protect the transmission.

The automatic transmission oil temperature sensor is installed in the body harness in the automatic transmission oil pan or fixed on the valve plate, immersed in at, and used to. It is used to detect the oil temperature of the automatic transmission, and as the automatic transmission computer, it performs shift control, oil pressure control and lock up clutch control basis of the system. The automatic transmission oil temperature sensor is also a negative temperature coefficient thermistor element, and its resistance changes with temperature and change. When the temperature rises, the resistance value of the sensor decreases, and the computer measures the resistance value of the automatic transmission oil according to the change of its resistance value

Temperature. Its specific functions are as follows:

(1) When the oil temperature is low: do not rise to the high gear, and the lock up clutch does not lock up.
(2)Downshift when the oil temperature is high,the lock up clutch is locked.
(3)When the oil temperature is lower than 60 ℃, adjust the main oil pressure to be lower than the normal value to prevent production due to low oil temperature and high viscosity generate shift impact.
(4) When the oil temperature is lower than -30 ℃, the computer controls to adjust the main oil pressure to the maximum value to prevent the oil from sticking when the oil temperature is too low too large to make the shift process too smooth.