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P0198 Ford Code - Engine Oil Temperature Sensor Circuit High Input

Quick Answer

The P0198 Ford code indicates that there is a high input signal detected from the engine oil temperature sensor circuit. Common causes include Faulty engine oil temperature sensor, Wiring or connector issues in the sensor circuit, Engine oil contamination. 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
P0198 Ford indicates Engine Oil Temperature Sensor Circuit High Input.
Common causes
Common causes include Faulty engine oil temperature sensor, Wiring or connector issues in the sensor circuit, Engine oil contamination.
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 Aug 30, 2024
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Code P0198 Ford Description

The P0198 Ford code indicates that there is a high input signal detected from the engine oil temperature sensor circuit. The engine oil temperature sensor is responsible for monitoring the temperature of the engine oil, which is crucial for maintaining optimal engine performance and efficiency. When the sensor detects a high input signal, it means that the engine oil temperature is reading higher than expected, which can lead to issues with the engine's operation.

OBDII Code P0198 Ford - Engine Oil Temperature Sensor Circuit High Input
P0198 Ford Code - Engine Oil Temperature Sensor Circuit High Input

Common Causes of P0198 Ford

  1. Faulty engine oil temperature sensor
  2. Wiring or connector issues in the sensor circuit
  3. Engine oil contamination
  4. Engine overheating
  5. ECM (Engine Control Module) malfunction

Symptoms of P0198 Ford

  1. Check engine light illuminated
  2. Decreased fuel economy
  3. Engine running hotter than usual
  4. Engine performance issues
  5. Rough idling or stalling

How to Fix P0198 Ford

  1. Diagnose the issue by using a scan tool to read the code and determine the exact cause of the high input signal.
  2. Inspect the engine oil temperature sensor, wiring, and connectors for any damage or corrosion.
  3. Replace the engine oil temperature sensor if it is found to be faulty.
  4. Clear the diagnostic trouble codes from the vehicle's ECM.
  5. Test drive the vehicle to ensure the issue has been resolved and the code does not return.

Cost to Fix P0198 Ford

The typical repair costs for addressing the P0198 Ford code can range from $100 to $300, including parts and labor. However, it is important to note that the actual cost may vary depending on the specific diagnosis time and labor rates at auto repair shops. Rates can fluctuate based on factors such as the location of the repair shop, the make and model of the vehicle, and the type of engine. It is recommended to inquire about local rates to obtain a more accurate estimate for this repair.

When is the Code Detected?

The P0198 indicates the Engine Oil Temperature Sensor signal voltage is hign (low temperature).

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Information for Specific Ford Models

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.

Frequently Asked Questions about P0198 Ford Code

No Frequently Asked Questions about P0198 Ford Code found.

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  • Can Someone tell me where the Oil Temperature Sensor is Located on 203 Explorer 4.0 Engine??

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  • The 2003 Ford Explorer does not have Oil Temperature Sensor, lease double check the code number or check the code with another OBDII code reader.

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  • How do you check the electrical system on ford f150 2006

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  • You check the Engine Oil Temperature sensor wires, make sure the wires are not broken or damage, and the sensor connector is well connected to the sensor.

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  • where is is the oil temperature located

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  • What model and year is your Ford?

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  • Hi, i have this code on my 2005 ford expedition and engine runs very bad with loud tapping noise from valves ones engine is warmed up.

    Can someone pls help with a possible solution?

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  • When was the last time you change the engine oil and filter?

    Reply to Comment