What is a transmission fluid sensor?

Description. Thermometrics Transmission Fluid Temperature Sensor (TFT) measures the temperature of transmission fluid. It provides input to the control module to modify shift patterns for smoother shifting in automatic transmissions, and also provides over-temperature protection by locking the torque convertor.

How much does it cost to replace a transmission temperature sensor?

Transmission Position Sensor Replacement Cost – RepairPal Estimate. The average cost for transmission position sensor replacement is between $248 and $297. Labor costs are estimated between $136 and $172 while parts are priced between $112 and $125.

Can you drive with a bad transmission fluid sensor?

A bad transmission speed sensor makes for rough and difficult gear changes, and can leave you without an accurate speedometer. All this adds up to a dangerous drive, worsened by the fact that your car is probably less efficient, and producing more harmful emissions.

Where is the transmission fluid sensor?

A (TFT) transmission fluid temperature sensor is one of several sensors providing input to the (TCM) transmission control module. It’s located in the valve body or oil pan of the transmission or transaxle. The TCM uses this sensor to monitor the temperature of the transmission fluid.

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What happens when a transmission temperature sensor goes bad?

Symptoms of a bad transmission fluid temperature sensor:

Check engine light displays in the dash. The torque converter will not operate correctly. Harsh or delayed shifts. The vehicle goes into limp mode.

How can you tell if the transmission sensor is bad?

One of the most common signs of a bad speed sensor is abnormal automatic transmission operation. If the VSS is faulty, the transmission may exhibit symptoms such as delayed shifts, hard shifts, and limited gear operation.

How long does it take to replace a transmission temperature sensor?

How long does it take to fix a transmission sensor? It can take a bit longer depending on the level of damage. Some professional technicians complete the entire replacement task in two or three hours.

What are the symptoms of low transmission fluid?

Symptoms of Low Transmission Fluid

  • Drips or puddles underneath the car.
  • Difficulty shifting through gears and/or slipping.
  • Shuddering or shaking.
  • Lurching or sudden jerks.
  • Transmission won’t engage.
  • Humming or clunking noises.
  • A burning smell.

How many sensors are in a transmission?

Typically, two sensors communicate the transmission data to the vehicle’s powertrain control module. The first sensor, referred to as the input sensor, monitors the speed of the transmission’s input shaft. The second sensor is the output sensor, which monitors the output shaft speed.

What type of sensor is the transmission fluid temperature TFT sensor?

The TFT sensor is a type of NTC (negative temperature coefficient) thermistor. This means the sensor’s internal resistance is inversely proportional to the oil temperature. The TFT signal voltage goes down when the transmission fluid temperature goes up, and vice versa.

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How long do transmission sensors last?

Generally, the original transmission speed sensor should last over 100,000 miles and it typically needs to be replaced at 150,000 miles. Vehicles that are poorly maintained often fail earlier.

Can bad oxygen sensor cause transmission problems?

For the most part, anything that affects the engine performance will lead to trouble shifting gears in your car. … In regards to air, a bad O2 sensor or dirty mass air flow sensor will also cause the gears to stick.

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