AutoCodes – Ford – P1289 2000 Ford F150

P1289 2000 Ford F150 Code - Cylinder Head Temperature Sensor Signal Greater Than Self-Test Range

Quick Answer

The Cylinder Head Temperature (CHT) Sensor is mounted into the wall of the cylinder head and is not connected to any coolant passages. Common causes include Wrong thermostat, Engine overheated, Low engine coolant level. 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: P1289 2000 Ford F150 indicates Cylinder Head Temperature Sensor Signal Greater Than Self-Test Range.
Common causes: Common causes include Wrong thermostat, Engine overheated, Low engine coolant level.
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 4,477

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 Aug 07, 2019

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P1289 2000 Ford F150 Description

The Cylinder Head Temperature (CHT) Sensor is mounted into the wall of the cylinder head and is not connected to any coolant passages. The CHT sends a signal to the Powertrain Control Module (PCM) indicating the cylinder head temperature. If the temperature exceeds 126°C (-258°F), the PCM disables four fuel injectors at a time. The PCM will alternate which four injectors are disabled every 32 engine cycles. The four cylinders that are not being fuel injected act as air pumps to aid in cooling the engine. If the temperature exceeds 154 °C (310°F), the PCM disables all of the fuel injectors until the engine temperature drops below 154°C (310°F).

OBDII Code P1289 2000 Ford F150 - Cylinder Head Temperature Sensor Signal Greater Than Self-Test Range - AutoCodes.com — P1289 2000 Ford F150 Code - Cylinder Head Temperature Sensor Signal Greater Than Self-Test Range

What does this mean?

What are the Possible Causes of the DTC P1289 2000 Ford F150?

Wrong thermostat
Engine overheated
Low engine coolant level
Faulty Cylinder Head Temperature (CHT) sensor
Cylinder Head Temperature (CHT) sensor harness is open or shorted
Cylinder Head Temperature (CHT) sensor circuit poor electrical connection

How to Fix the DTC P1289 2000 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 does this mean?

Code Tech Notes

Indicates a Cylinder Head Temperature (CHT) sensor circuit malfunction (open).

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1289 2000 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 P1289 2000 Ford F150 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 P1289 2000 Ford F150 Code

1. What are the common symptoms of OBDII code P1289 on a 2000 Ford F150?

The common symptoms of OBDII code P1289 include engine overheating, rough idling, poor fuel economy, and potential stalling of the vehicle.

2. What does the OBDII code P1289 indicate on a 2000 Ford F150?

OBDII code P1289 on a 2000 Ford F150 indicates that the Cylinder Head Temperature Sensor signal is greater than the self-test range, suggesting a problem with the sensor or its circuit.

3. What are the possible causes of OBDII code P1289 on a 2000 Ford F150?

Possible causes of OBDII code P1289 include a faulty Cylinder Head Temperature Sensor, damaged wiring or connectors in the sensor circuit, or issues with the engine's cooling system.

4. How can I diagnose the OBDII code P1289 on my 2000 Ford F150?

To diagnose OBDII code P1289, you can use a diagnostic scanner to retrieve the code and then inspect the Cylinder Head Temperature Sensor, its wiring, and connectors for any visible damage or corrosion.

5. Can I continue driving my 2000 Ford F150 with OBDII code P1289?

It is not recommended to continue driving your vehicle with OBDII code P1289, as it can lead to engine overheating and potential damage. It is best to address the issue promptly.

6. How can I repair OBDII code P1289 on my 2000 Ford F150?

To repair OBDII code P1289, you may need to replace the Cylinder Head Temperature Sensor, repair any damaged wiring or connectors, and clear the error code using a diagnostic scanner.

7. Will resetting the error code fix OBDII code P1289 on my 2000 Ford F150?

Resetting the error code may temporarily clear the warning light, but it will not fix the underlying issue causing OBDII code P1289. It is important to diagnose and repair the problem to prevent further issues.

8. How much does it cost to repair OBDII code P1289 on a 2000 Ford F150?

The cost to repair OBDII code P1289 on a 2000 Ford F150 can vary depending on the cause of the issue, the cost of parts, and labor charges. It is recommended to get a diagnosis from a mechanic for an accurate estimate.

9. Can a DIY enthusiast fix OBDII code P1289 on a 2000 Ford F150?

If you have experience with automotive repairs and the necessary tools, you may be able to fix OBDII code P1289 on your 2000 Ford F150. However, it is recommended to consult a professional if you are unsure or unfamiliar with the repair process.

10. How often does OBDII code P1289 occur in a 2000 Ford F150?

OBDII code P1289 can occur in a 2000 Ford F150 due to various reasons, such as sensor failure or wiring issues. Regular maintenance and prompt attention to warning lights can help prevent this code from appearing frequently.