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P0021 2017 Ford F150 Code - 'A' Camshaft Position Timing Over-Advanced Bank 2

Quick Answer

The P0021 code for a 2017 Ford F150 indicates that there is an issue with the 'A' camshaft position timing being over-advanced on bank 2 of the engine. Common causes include Faulty camshaft position sensor, Timing chain or belt issues, Engine oil sludge or debris obstructing the camshaft. 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
P0021 2017 Ford F150 indicates 'A' Camshaft Position Timing Over-Advanced Bank 2.
Common causes
Common causes include Faulty camshaft position sensor, Timing chain or belt issues, Engine oil sludge or debris obstructing the camshaft.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code P0021 2017 Ford F150 Description

The P0021 code for a 2017 Ford F150 indicates that there is an issue with the 'A' camshaft position timing being over-advanced on bank 2 of the engine. This means that the timing of the camshaft on the second bank is too advanced, which can lead to a variety of performance issues. The camshaft position is crucial for the proper operation of the engine, as it controls the opening and closing of the intake and exhaust valves. When the timing is off, it can result in poor engine performance, reduced fuel efficiency, and potential damage to other engine components.

OBDII Code P0021 2017 Ford F150 - 'A' Camshaft Position Timing Over-Advanced Bank 2
P0021 2017 Ford F150 Code - 'A' Camshaft Position Timing Over-Advanced Bank 2

Common Causes of P0021 2017 Ford F150

  1. Faulty camshaft position sensor.
  2. Timing chain or belt issues.
  3. Engine oil sludge or debris obstructing the camshaft.
  4. Electrical wiring or connector issues.
  5. Engine control module (ECM) software glitches.

Symptoms of P0021 2017 Ford F150

  1. Check engine light illuminated on the dashboard.
  2. Engine misfires or rough idling.
  3. Decreased fuel efficiency.
  4. Loss of power or acceleration.
  5. Engine knocking or pinging sounds.

How to Fix P0021 2017 Ford F150

  1. Begin by diagnosing the specific cause of the issue with a scan tool to confirm the P0021 code.
  2. Inspect the camshaft position sensor and wiring for any damage or malfunction and replace if necessary.
  3. Check the timing chain or belt for proper tension and alignment, replacing if worn or out of spec.
  4. Clean or replace engine oil if sludge or debris is found, and ensure proper lubrication of the camshaft.
  5. Reset the engine control module (ECM) and test drive the vehicle to verify that the issue has been resolved.

Cost to Fix P0021 2017 Ford F150

The typical repair costs for addressing a P0021 code on a 2017 Ford F150 can vary depending on the specific cause of the issue. Generally, parts such as a camshaft position sensor can range from $50 to $200, while labor costs can be between $100 to $300. Timing chain or belt replacement can be more expensive, with parts costing $200 to $500 and labor ranging from $300 to $800. Overall, the total repair cost for this issue can range from $200 to $1000 or more, depending on the extent of the problem and the necessary repairs. It is recommended to consult with a qualified mechanic or auto repair shop for a more accurate estimate based on the specific circumstances of your vehicle.

What does this mean?

Tech Notes for P0021 2017 Ford F150

This Diagnostic Trouble Code (DTC) may be accompanied by other DTCs. Diagnose all Camshaft Position (CMP) Sensor DTCs first. If no CMP sensor related DTCs are present, continue checking the Variable Camshaft Timing (VCT) Solenoid.

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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 P0021 2017 Ford F150 Code

1. What are the common symptoms of OBDII code P0021 in a 2017 Ford F150?

The common symptoms include rough idling, engine misfires, decreased fuel efficiency, and potential stalling of the vehicle.

2. What does the OBDII code P0021 'A' Camshaft Position Timing Over-Advanced Bank 2 mean for a 2017 Ford F150?

This code indicates that the engine's computer has detected that the camshaft position is too advanced in bank 2, leading to potential timing and performance issues.

3. What are the possible causes of OBDII code P0021 in a 2017 Ford F150?

Common causes include a faulty camshaft position sensor, issues with the timing chain or belt, clogged oil passages, or a malfunctioning Variable Valve Timing (VVT) solenoid.

4. How can I diagnose the OBDII code P0021 in my 2017 Ford F150?

Diagnosis typically involves checking the camshaft position sensor, inspecting the timing components, testing the VVT solenoid, and ensuring proper oil flow to the system.

5. Can I drive my 2017 Ford F150 with OBDII code P0021?

It is not recommended to drive the vehicle with this code as it can lead to further engine damage and potential safety hazards. It's advisable to address the issue promptly.

6. How can I repair OBDII code P0021 in a 2017 Ford F150?

Repair options may include replacing the camshaft position sensor, addressing timing chain/belt issues, cleaning oil passages, or replacing the VVT solenoid based on the specific diagnosis.

7. Will resetting the OBDII code P0021 in my 2017 Ford F150 make it go away?

Resetting the code may temporarily clear the warning light, but if the underlying issue is not addressed, the code is likely to reappear once the vehicle is driven and the problem persists.

8. Is OBDII code P0021 in a 2017 Ford F150 a serious issue?

Yes, this code should be taken seriously as it can affect the engine's performance and potentially cause further damage if left unresolved. Prompt diagnosis and repair are recommended.

9. Can a DIY enthusiast fix OBDII code P0021 in a 2017 Ford F150?

Depending on the skill level and tools available, some DIY enthusiasts may be able to address this code by following repair guides and procedures. However, complex issues may require professional assistance.

10. How much does it cost to repair OBDII code P0021 in a 2017 Ford F150?

Repair costs can vary based on the specific cause of the code and the labor rates in your area. It's advisable to get multiple quotes from reputable mechanics to determine the cost of repairs.

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