AutoCodes – Ford – P0298 2008 Ford Fusion

P0298 2008 Ford Fusion Code - Engine Oil Over Temperature Condition

Quick Answer

Indicates the engine oil temperature protection strategy in the Powertrain Control Module (PCM) has been activated. Common causes include Low or dirty motor oil condition, Faulty Oil Pressure Switch, Faulty Engine Oil Temperature (EOT) sensor. 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: P0298 2008 Ford Fusion indicates Engine Oil Over Temperature Condition.
Common causes: Common causes include Low or dirty motor oil condition, Faulty Oil Pressure Switch, Faulty Engine Oil Temperature (EOT) sensor.
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.

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Code Popularity 1,588

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 14, 2019

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0298 2008 Ford Fusion Description

Indicates the engine oil temperature protection strategy in the Powertrain Control Module (PCM) has been activated. This temporarily prohibits high engine speed operation by disabling injectors, to reduce the risk of engine damage from high engine oil temperature. On engines equipped with an oil temperature sensor, the PCM reads oil temperature to determine if it is excessive. When an oil temperature sensor is not present, the PCM uses an oil algorithm to determine actual temperature. Engine shutdown strategy function is the same on vehicles with and without oil temperature sensors.

OBDII Code P0298 2008 Ford Fusion - Engine Oil Over Temperature Condition - AutoCodes.com — P0298 2008 Ford Fusion Code - Engine Oil Over Temperature Condition

What does this mean?

What are the Possible Causes of the DTC P0298 2008 Ford Fusion?

Low or dirty motor oil condition
Faulty Oil Pressure Switch
Faulty Engine Oil Temperature (EOT) sensor
Engine overheating condition
Very high engine RPM for an extended period of time

How to Fix the DTC P0298 2008 Ford Fusion?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

On engines which are equipped with an oil temperature sensor, the Engine Control Module (ECM) reads oil temperature to determine if it is excessive. When an oil temperature sensor is not present, the ECM uses an oil algorithm to infer actual temperature. Engine shutdown strategy function is the same on vehicles with and without oil temperature sensors.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0298 2008 Ford Fusion code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0298 2008 Ford Fusion code?

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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.

Frequently Asked Questions about P0298 2008 Ford Fusion Code

1. What does the P0298 code mean on a 2008 Ford Fusion?

The P0298 code indicates an "Engine Oil Over Temperature Condition," meaning the oil temperature is higher than the manufacturerâ€™s specified limit.

2. What are the common symptoms of the P0298 code?

Symptoms may include the engine oil temperature warning light activating, reduced engine performance, overheating, or a burning oil smell.

3. What causes the P0298 code to appear?

Common causes include low engine oil levels, poor oil quality, a failing oil temperature sensor, a malfunctioning oil cooler, or extreme driving conditions like towing or prolonged high-speed driving.

4. Can I drive my 2008 Ford Fusion with the P0298 code?

It is not recommended to drive with this code active, as excessive oil temperature can lead to engine damage if not addressed promptly.

5. How do I fix the P0298 code on my Ford Fusion?

Repairs may include checking and topping off engine oil, replacing degraded oil with the correct grade, inspecting the oil temperature sensor for faults, or repairing/replacing the oil cooler.

6. Is an oil change necessary to fix the P0298 code?

An oil change may be needed if the oil is old, degraded, or the wrong viscosity, as poor oil quality can contribute to high oil temperatures.

7. How do I diagnose the P0298 code on a 2008 Ford Fusion?

Start by checking the oil level and quality, using a scan tool to monitor the oil temperature sensor readings, and inspecting the cooling system for proper function.

8. Can a faulty oil temperature sensor trigger the P0298 code?

Yes, a malfunctioning oil temperature sensor can send incorrect readings to the engine control module, causing the code to appear.

9. What is the role of the oil cooler in preventing the P0298 code?

The oil cooler helps regulate engine oil temperature, and a failure in this component can lead to excessive oil temperatures and trigger the code.

10. How much does it cost to fix the P0298 code on a Ford Fusion?

The cost depends on the root cause. An oil change may cost $50-$100, while replacing an oil temperature sensor or oil cooler could range from $150-$500, including parts and labor.