speed sensor for my car

Replace a Spare part Speed sensor – a defective one or if the limit of use has been already reached. Find out useful information about Speed sensor

Modern vehicles are fitted with two transmission speed sensors The first one monitors the speed of the input shaft and the second one – that of the output shaft. The data is transmitted to the electronic control unit where it is processed to calculate the current engine load and to choose the most suitable gear.

5 tips on how to use and replace them

1. Replace the parts when they get out of order. Their service life is not specified.
2. Try to replace faulty parts as soon as possible. The fact is that under these conditions the control unit starts to operate in the emergency mode and, as a result, some gears may be impossible to be switched to.
3. To have maintenance or repair done, visit a repair shop. If you have the required skills, you can replace the parts yourself observing all safety precautions. Consider the fact that in some cases it will be necessary to remove the battery and the air filter housing.
4. The first symptom of a faulty transmission speed sensor is that the HOLD or A/T warning lamp goes on from time to time. If this happens, you should immediately visit a repair shop for a checkup.
5. If the terminals of the part are slightly oxidized, try to clean them. In some cases, this helps to extend their service life.

Malfunctions of transmission speed sensors, their causes and symptoms

• Loss of tightness of the housing. That is the result of damage caused by temperature changes or a hit. The defect symptoms include impaired acceleration performance of the vehicle, gear lever malfunction. Besides, an emergency mode is often activated which doesn’t allow shifting to all speeds.
• Significant oxidation of contacts. It might happen because of long use and lack of timely inspection. This fault results in unstable operation of the gearbox. Besides, the malfunction can be detected using computer-aided diagnosis.

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