P0128 2007 Ford Fusion Code - Coolant Thermostat
Quick Answer
Indicates that the thermostat monitor has not achieved the required engine operating temperature within a specified amount of time after starting the engine. Common causes include Low engine coolant level, Faulty Engine Coolant Temperature (ECT) sensor or cylinder head temp (CHT) sensor, Faulty engine coolant thermostat. 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
- P0128 2007 Ford Fusion indicates Coolant Thermostat.
- Common causes
- Common causes include Low engine coolant level, Faulty Engine Coolant Temperature (ECT) sensor or cylinder head temp (CHT) sensor, Faulty engine coolant thermostat.
- 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.
Code P0128 2007 Ford Fusion Description
What are the Possible Causes of the DTC P0128 2007 Ford Fusion?
- Low engine coolant level
- Faulty Engine Coolant Temperature (ECT) sensor or cylinder head temp (CHT) sensor
- Faulty engine coolant thermostat
- Engine Coolant Temperature (ECT) sensor or cylinder head temp (CHT) sensor harness is open or shorted
- Engine Coolant Temperature (ECT) sensor or cylinder head temp (CHT) sensor circuit poor electrical connection
How to Fix the DTC P0128 2007 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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0128 2007 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.
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Frequently Asked Questions about P0128 2007 Ford Fusion Code
1. What does OBDII code P0128 on a 2007 Ford Fusion indicate?
The OBDII code P0128 on a 2007 Ford Fusion indicates a problem with the coolant thermostat.
2. What are the common symptoms of a P0128 code on a 2007 Ford Fusion?
Common symptoms of a P0128 code on a 2007 Ford Fusion include the engine running cooler than normal, the temperature gauge not reaching operating temperature, and a decrease in fuel efficiency.
3. What are the possible causes of a P0128 code on a 2007 Ford Fusion?
Possible causes of a P0128 code on a 2007 Ford Fusion include a faulty thermostat, a stuck-open thermostat, low coolant levels, a malfunctioning engine coolant temperature sensor, or a problem with the cooling system.
4. How can I diagnose a P0128 code on a 2007 Ford Fusion?
To diagnose a P0128 code on a 2007 Ford Fusion, you can start by checking the coolant level, inspecting the thermostat for proper operation, testing the engine coolant temperature sensor, and ensuring the cooling system is functioning correctly.
5. Can I continue driving my 2007 Ford Fusion with a P0128 code?
It is not recommended to continue driving your 2007 Ford Fusion with a P0128 code as it can lead to engine overheating and potential damage. It is best to address the issue promptly.
6. How do I repair a P0128 code on a 2007 Ford Fusion?
To repair a P0128 code on a 2007 Ford Fusion, you may need to replace the thermostat, flush and refill the coolant, check and replace the engine coolant temperature sensor if necessary, and ensure the cooling system is working properly.
7. Is it safe to reset the OBDII code P0128 on a 2007 Ford Fusion and continue driving?
Resetting the OBDII code P0128 on a 2007 Ford Fusion without addressing the underlying issue is not recommended as the problem may persist, potentially leading to further damage. It's best to diagnose and repair the root cause of the code.
8. How much does it cost to fix a P0128 code on a 2007 Ford Fusion?
The cost to fix a P0128 code on a 2007 Ford Fusion can vary depending on the underlying issue, the parts needed for repair, and labor costs. It is advisable to consult a mechanic for a more accurate estimate.
9. Can a DIY enthusiast fix a P0128 code on a 2007 Ford Fusion?
Depending on your mechanical skills and access to tools, a DIY enthusiast may be able to fix a P0128 code on a 2007 Ford Fusion by replacing the thermostat or performing basic diagnostic checks. However, more complex issues may require professional assistance.
10. How often does a P0128 code occur in a 2007 Ford Fusion?
A P0128 code in a 2007 Ford Fusion can occur sporadically due to various factors such as thermostat wear, coolant system issues, or sensor malfunctions. Regular maintenance and monitoring can help prevent the recurrence of this code.
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