FAE® 33295 - Double Temperature Switch

The good condition of the metal body, the connector and wires must be checked and ensured. Also verify if the sensor shows any cracks, dents or impacts that might have damaged it. Keep in mind that, as a general rule, visual inspection is not sufficient to ensure the good or bad performance of the part, but it helps to make an initial diagnosis.

• 1. Cracks or breaks. Tensions provoked by mechanical stress.
• 2. Deformations and dents. Overheated sensor.
• 3. Leaks. Bad anchored sensor to the engine block or a worn out seal.
• 4.No signal. Failure of the wire due to friction or excessive vibration, short circuit, internal failure of the sensor due to mechanical or thermal stress.

Signs of Failure of Sensors

• High fuel consumption.
• Power loss.
• Overheating.
• Warning light Engine Check.
• Difficulties starting the engine.
• Increased emissions.

Maintenance

The specific values of the sensors must be checked each maintenance or every 25.000km. Remember that refrigerant can cause corrosion and disable the res- ponse of the sensors. In case of air sensors the possibility exists that impurities obstruct the pipes which results in the impossibility of performing readings by the sensor. Replace the sensor whenever results are diagnosed which are not within the specified operating limits.