P1299 1999 Ford F150 Code - Cylinder Head Temperature Sensor Detected Engine Overheating Condition
Quick Answer
The Cylinder Head Temperature (CHT) Sensor is a thermistor device in which resistance changes with temperature. Common causes include Low engine coolant, Faulty Thermostat, Faulty 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
- P1299 1999 Ford F150 indicates Cylinder Head Temperature Sensor Detected Engine Overheating Condition.
- Common causes
- Common causes include Low engine coolant, Faulty Thermostat, Faulty 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 P1299 1999 Ford F150 Description
The CHT sensor is installed in the aluminum cylinder head and measures the metal temperature. The CHT sensor can provide complete engine temperature information and can be used to infer coolant temperature. If the CHT sensor conveys an overheating condition to the PCM, the PCM initiates a fail-safe cooling strategy based on information from the CHT sensor. A cooling system concern such as low coolant or coolant loss could cause an overheating condition. As a result, damage to major engine components could occur. Using both the CHT sensor and fail-safe cooling strategy, the PCM prevents damage by allowing air cooling of the engine and limp home capability.
The Diagnostic Trouble Code (DTC) indicates an engine overheat condition was detected by the Cylinder Head Temperature Sensor. A Failure Mode Effects Management (FMEM) strategy called fail-safe cooling was activated to cool the engine.
What are the Possible Causes of the DTC P1299 1999 Ford F150?
- Low engine coolant
- Faulty Thermostat
- Faulty Cylinder Head Temperature (CHT) Sensor
- Cylinder Head Temperature Sensor harness is open or shorted
- Cylinder Head Temperature Sensor circuit poor electrical connection
How to Fix the DTC P1299 1999 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.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1299 1999 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.
Need more information about the P1299 1999 Ford F150 code?
Need more information on how to fix the P1299 1999 Ford F150 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1299 1999 Ford F150 code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P1299 1999 Ford F150 Code
1. What are the common symptoms of OBDII code P1299 on a 1999 Ford F150?
- Common symptoms include the engine overheating, loss of engine power, and potential illumination of the check engine light.
2. What can cause the OBDII code P1299 to trigger in a 1999 Ford F150?
- The most common cause of P1299 is a faulty cylinder head temperature sensor, which detects an overheating condition in the engine.
3. How serious is the OBDII code P1299 in a 1999 Ford F150?
- P1299 indicates an engine overheating condition, which can lead to serious engine damage if not addressed promptly.
4. Can I still drive my 1999 Ford F150 with the P1299 code?
- It is not recommended to drive the vehicle with the P1299 code as it may cause further damage to the engine.
5. How can I diagnose and repair the OBDII code P1299 on my 1999 Ford F150?
- Diagnosis involves checking the cylinder head temperature sensor and its wiring for any issues. Repair typically involves replacing the faulty sensor.
6. Are there any DIY tips for fixing the P1299 code on a 1999 Ford F150?
- If you have experience with automotive repairs, you can attempt to replace the cylinder head temperature sensor yourself to address the P1299 code.
7. How much does it cost to repair the OBDII code P1299 on a 1999 Ford F150?
- The cost of repairing P1299 can vary depending on the labor rates and parts prices, but it typically ranges from $100 to $300.
8. Will resetting the OBDII code P1299 on my 1999 Ford F150 make it go away permanently?
- Resetting the code may temporarily clear the check engine light, but if the underlying issue (faulty cylinder head temperature sensor) is not fixed, the code will likely reappear.
9. Can a faulty thermostat cause the OBDII code P1299 in a 1999 Ford F150?
- While a faulty thermostat can contribute to engine overheating, the P1299 code specifically indicates a problem with the cylinder head temperature sensor.
10. Is it safe to ignore the OBDII code P1299 on a 1999 Ford F150?
- Ignoring the P1299 code is not recommended as it can lead to severe engine damage due to overheating. It's best to address the issue promptly to prevent further complications.
Discuss the causes and fixes for P1299 1999 Ford F150 OBDII Code
Code P1299 1999 Ford F150 comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
