Information - Coolant Temperature Sensor

The coolant temperature sensor is used for converting the coolant temperature of the engine into direct current voltage. The information from the coolant temperature controller gives the possibility to fix the basic parameters of the engine control depending on its thermal situation. It also allows the sensor to correct the basic parameters of the engine control according to the nominal temperature in the engine area, behind the baffler.

The sensor looks like a Zener diode, which is energized by a constant operating current from a regulated power control device; the sensor output voltage varies depending on the ambient temperature. As the temperature rises, the sensor output voltage also increases. Temperature sensors are mounted on the engine. Installation of the sensor is accomplished by screwing it into the mounting screw holes.

The joint is sealed with sealant. The sensor is connected to the wire harness using a double contact socket with a latch. The coolant temperature sensor consists of several elements: metal sensor housing with a cap in the form of a cylinder, containing the sensing element and a plastic back with a two-pin plug.

You do not have time for car parts shopping? Repair in service centers is a lot more expensive, and replacement of parts will probably take longer than you think? Then you definitely need to go to our online store. You can do it from your home or office. All you need is to select the coolant temperature sensor that is compatible with your vehicle.

And we will deliver your order in a short time and to any convenient place. Apart from sensors, you can also buy brake pads, timing belt cover or door handles.

What you need to know about coolant temperature sensor replacement: lifetime limits, common defects and their signs, tips and recommendations

There are no defined terms for component replacement. It is replaced in case of corrosion and such mechanical damages as cracks.

Common signs of engine temperature sensor breakdown are fuel consumption increase, troubles with engine start at low air temperature. Activation of the indicator which informs about engine overheating can also signalize about sensor breakdown.

Diagnostics of the component begins with examination. If you didn’t find out mechanical damages or corrosion, then you should visit a service station for professional diagnostics. Specialists will measure resistance and voltage of the device at different temperatures and compare results with standard values.

Before performing replacement, you need to stall the engine, remove the negative battery terminal and drain coolant from the expansion tank. Then you should disconnect the power wire from the component and unscrew the broken down detail with the help of the wrench. A new coolant temperature sensor is installed into its place. Then you need to perform all the actions in the reverse order, clean stains and add coolant to the needed level.

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