P0117 2002 Ford F150 Code - Engine Coolant Temperature Sensor Circuit Low
Quick Answer
The Engine Coolant Temperature (ECT) sensor is used to detect the engine coolant temperature. Common causes include Low engine coolant level, Faulty engine coolant thermostat, Faulty Engine Coolant Temperature (ECT) Sensor or Cylinder Head Temperature (CHT) 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
- P0117 2002 Ford F150 indicates Engine Coolant Temperature Sensor Circuit Low.
- Common causes
- Common causes include Low engine coolant level, Faulty engine coolant thermostat, Faulty Engine Coolant Temperature (ECT) Sensor or Cylinder Head Temperature (CHT) 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.
Code P0117 2002 Ford F150 Description
What are the Possible Causes of the DTC P0117 2002 Ford F150?
- Low engine coolant level
- Faulty engine coolant thermostat
- Faulty Engine Coolant Temperature (ECT) Sensor or Cylinder Head Temperature (CHT) Sensor
- Engine Coolant Temperature Sensor or Cylinder Head Temperature Sensor harness is open or shorted
- Engine Coolant Temperature Sensor or Cylinder Head Temperature Sensor circuit poor electrical connection
How to Fix the DTC P0117 2002 Ford F150?
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 P0117 2002 Ford F150 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 P0117 2002 Ford F150 Code
1. What are the common symptoms of OBDII code P0117 in a 2002 Ford F150?
The common symptoms include poor fuel economy, rough idling, engine overheating, and a decrease in overall engine performance.
2. What can cause the Engine Coolant Temperature Sensor Circuit Low code in a 2002 Ford F150?
The code P0117 can be triggered by a faulty engine coolant temperature sensor, damaged wiring or connectors, low coolant levels, or a malfunctioning engine control module (ECM).
3. How can I diagnose the cause of the low engine coolant temperature sensor circuit in my 2002 Ford F150?
You can diagnose the issue by checking the coolant level, inspecting the sensor and its wiring for any visible damage, and using a multimeter to test the sensor's resistance and voltage.
4. Is it safe to continue driving my 2002 Ford F150 with the P0117 code?
It is not recommended to drive your vehicle with the P0117 code, as it can lead to potential engine damage and poor performance. It's best to address the issue promptly.
5. Can I repair the Engine Coolant Temperature Sensor Circuit Low code in my 2002 Ford F150 by myself?
If you have some experience with automotive repairs and the necessary tools, you may be able to replace the coolant temperature sensor or repair the wiring yourself. However, seeking professional help is recommended for accurate diagnosis and repair.
6. Will resetting the OBDII code P0117 in my 2002 Ford F150 make it go away permanently?
Resetting the code may temporarily make the check engine light go off, but if the underlying issue causing the code is not fixed, the code is likely to reappear.
7. How much does it typically cost to repair the Engine Coolant Temperature Sensor Circuit Low code in a 2002 Ford F150?
The cost of repair can vary depending on the exact cause of the issue. Replacing the coolant temperature sensor can cost between $50 to $200, while addressing wiring or ECM issues may be more expensive.
8. Can a faulty engine coolant temperature sensor affect other systems in my 2002 Ford F150?
Yes, a faulty coolant temperature sensor can affect the fuel mixture, ignition timing, and other engine functions, leading to poor performance and potential damage if left unresolved.
9. How long does it take to repair the P0117 code in a 2002 Ford F150?
The repair time can vary based on the exact cause of the issue and your level of experience. Replacing the coolant temperature sensor typically takes around 30 minutes to an hour.
10. Are there any preventative maintenance steps I can take to avoid the Engine Coolant Temperature Sensor Circuit Low code in my 2002 Ford F150?
Regularly checking and maintaining your vehicle's cooling system, including coolant levels and the condition of the temperature sensor, can help prevent issues that trigger the P0117 code.
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