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P1718 Ford Code - Transmission Fluid Temperature Sensor Performance

Quick Answer

The P1718 Ford code refers to an issue with the transmission fluid temperature sensor's performance. Common causes include Faulty Sensor: The most common cause of this code is a faulty transmission fluid temperature sensor that needs to be replaced, Wiring Issues: Damage or corrosion to the wiring harness connected to the sensor can also trigger this code, Electrical Problems: Issues with the vehicle's electrical system, such as a blown fuse or relay, can affect the sensor's performance. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P1718 Ford indicates Transmission Fluid Temperature Sensor Performance.
Common causes
Common causes include Faulty Sensor: The most common cause of this code is a faulty transmission fluid temperature sensor that needs to be replaced, Wiring Issues: Damage or corrosion to the wiring harness connected to the sensor can also trigger this code, Electrical Problems: Issues with the vehicle's electrical system, such as a blown fuse or relay, can affect the sensor's performance.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Sep 09, 2024
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Code P1718 Ford Description

The P1718 Ford code refers to an issue with the transmission fluid temperature sensor's performance. This sensor is responsible for monitoring the temperature of the transmission fluid, which is crucial for ensuring optimal performance and longevity of the transmission system. When this sensor malfunctions or fails to operate correctly, it can lead to a variety of issues that can affect the vehicle's overall performance and reliability.

OBDII Code P1718 Ford - Transmission Fluid Temperature Sensor Performance
P1718 Ford Code - Transmission Fluid Temperature Sensor Performance

Common Causes of P1718 Ford

  1. Faulty Sensor: The most common cause of this code is a faulty transmission fluid temperature sensor that needs to be replaced.
  2. Wiring Issues: Damage or corrosion to the wiring harness connected to the sensor can also trigger this code.
  3. Electrical Problems: Issues with the vehicle's electrical system, such as a blown fuse or relay, can affect the sensor's performance.
  4. Low Transmission Fluid Levels: Insufficient levels of transmission fluid can impact the sensor's ability to accurately measure temperature.
  5. Engine Overheating: If the engine is overheating, it can indirectly affect the transmission fluid temperature and trigger this code.

Symptoms of P1718 Ford

  1. Check Engine Light: The most common symptom associated with this code is the illumination of the check engine light on the vehicle's dashboard.
  2. Transmission Slipping: A malfunctioning transmission fluid temperature sensor can cause the transmission to slip or shift erratically.
  3. Harsh Shifting: The transmission may experience harsh or delayed shifting patterns due to inaccurate temperature readings.
  4. Decreased Fuel Efficiency: If the transmission is not operating at the correct temperature, it can lead to decreased fuel efficiency.
  5. Transmission Overheating: In severe cases, a faulty sensor can cause the transmission to overheat, leading to potential damage to internal components.

How to Fix P1718 Ford

  1. Diagnostic Testing: The first step in resolving this issue is to perform diagnostic testing to confirm that the transmission fluid temperature sensor is indeed the culprit.
  2. Sensor Replacement: If the sensor is found to be faulty, it will need to be replaced with a new one to restore proper operation.
  3. Wiring Inspection: Check the wiring harness for any signs of damage or corrosion and repair or replace as necessary.
  4. Electrical System Check: Ensure that the vehicle's electrical system is functioning correctly, including checking fuses and relays related to the sensor.
  5. Transmission Fluid Service: After replacing the sensor, it's advisable to perform a transmission fluid service to ensure the system is operating at optimal levels.

Cost to Fix P1718 Ford

The cost of repairing a transmission fluid temperature sensor performance issue can vary depending on the make and model of the vehicle, as well as the labor rates in your area. On average, you can expect to pay between $150 and $300 for parts and labor for this repair. It's recommended to consult with a trusted mechanic or auto repair shop to get an accurate estimate based on your specific vehicle and location.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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