Engine-Codes.com
Engine-Codes – Ford – P1408 Ford

P1408 Ford Code - EGR Flow Out Of Self-Test Range

Quick Answer

The P1408 Ford diagnostic trouble code (DTC) indicates that the Exhaust Gas Recirculation (EGR) flow is out of the self-test range. Common causes include Clogged EGR passages, Faulty EGR valve, EGR temperature sensor malfunction. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means
P1408 Ford indicates EGR Flow Out Of Self-Test Range.
Common causes
Common causes include Clogged EGR passages, Faulty EGR valve, EGR temperature sensor malfunction.
Severity
Moderate - service should be scheduled soon.
Can I drive?
The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
What is this?
Table of contents Created and updated by William Orellana on Sep 06, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P1408 Ford Description

The P1408 Ford diagnostic trouble code (DTC) indicates that the Exhaust Gas Recirculation (EGR) flow is out of the self-test range. The EGR system is responsible for recirculating a portion of exhaust gases back into the intake manifold to reduce nitrogen oxide emissions. When the EGR flow is detected to be out of range, it can lead to a variety of performance issues in the vehicle.

OBDII Code P1408 Ford - EGR Flow Out Of Self-Test Range
P1408 Ford Code - EGR Flow Out Of Self-Test Range

Common Causes of P1408 Ford

  1. Clogged EGR passages
  2. Faulty EGR valve
  3. EGR temperature sensor malfunction
  4. Wiring issues in the EGR system
  5. Vacuum leaks in the EGR system

Symptoms of P1408 Ford

  1. Check engine light illuminated
  2. Rough idling or stalling
  3. Reduced acceleration
  4. Decreased fuel efficiency
  5. Increased emissions

How to Fix P1408 Ford

  1. Begin by diagnosing the EGR system using a scan tool to confirm the P1408 code.
  2. Inspect the EGR valve and its passages for any carbon buildup or blockages.
  3. Test the EGR temperature sensor and wiring for proper functionality.
  4. Repair or replace any faulty components such as the EGR valve, sensor, or wiring.
  5. Clear the DTC and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P1408 Ford

The typical repair costs for addressing a P1408 Ford code can range from $150 to $500, depending on the specific cause of the issue and the cost of parts and labor in your area. Keep in mind that diagnosis time and labor rates can vary, so it's recommended to check with local auto repair shops for a more accurate estimate.

What does this mean?

Tech Notes for P1408 Ford

Replace an EGR Valve 1997 Ford F150




User Submitted Video

Need more information about the P1408 Ford code?

Need more information on how to fix the P1408 Ford code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1408 Ford code diagnosed by a professional: Find a repair shop in your area

Information for Specific Ford Models

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 P1408 Ford Code

No Frequently Asked Questions about P1408 Ford Code found.

Discuss the causes and fixes for P1408 Ford OBDII Code

Submit a New Comment

  • I have a 2003 Ranger 2.3 Liter with a P1408 Ford code. I removed code and drove truck. The code came back. This truck is very hard to the egr valve. Has anyone everworked on one of these Rangers?

    Reply to Comment