P1408 2002 Ford F150 Code - EGR Flow Out Of Self-Test Range
Quick Answer
The Exhaust Gas Recirculation (EGR) system recirculates a portion of the exhaust gasses into the intake manifold under average vehicle driving conditions to reduce combustion temperatures and exhaust gas NOx content. Common causes include Faulty Exhaust Gas Recirculation (EGR) Valve, Exhaust Gas Recirculation (EGR) Valve Vacuum hose off or defective, Plugged Exhaust Gas Recirculation (EGR) Valve. 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 2002 Ford F150 indicates EGR Flow Out Of Self-Test Range.
- Common causes
- Common causes include Faulty Exhaust Gas Recirculation (EGR) Valve, Exhaust Gas Recirculation (EGR) Valve Vacuum hose off or defective, Plugged Exhaust Gas Recirculation (EGR) Valve.
- 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.
Code P1408 2002 Ford F150 Description
This test is performed during the Key On Engine Running (KOER) on demand self-test only. The EGR system is commanded ON at a fixed engine speed. The test fails and the Diagnostic Trouble Code (DTC) is output when the measured EGR flow falls above or below the required calibration.
What are the Possible Causes of the DTC P1408 2002 Ford F150?
- Faulty Exhaust Gas Recirculation (EGR) Valve
- Exhaust Gas Recirculation (EGR) Valve Vacuum hose off or defective
- Plugged Exhaust Gas Recirculation (EGR) Valve
How to Fix the DTC P1408 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.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1408 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 P1408 2002 Ford F150 Code
1. What are the common symptoms of OBDII code P1408 in a 2002 Ford F150?
The common symptoms include rough idling, engine hesitation, decreased fuel efficiency, and the illumination of the check engine light.
2. What does the OBDII code P1408 indicate in a 2002 Ford F150?
The P1408 code indicates that the EGR (Exhaust Gas Recirculation) flow is out of the self-test range, meaning there is an issue with the EGR system.
3. What are the possible causes of OBDII code P1408 in a 2002 Ford F150?
Possible causes include a faulty EGR valve, clogged EGR passages, a malfunctioning DPFE sensor, vacuum leaks, or a problem with the EGR control solenoid.
4. How can I diagnose the OBDII code P1408 in my 2002 Ford F150?
Diagnosis typically involves performing a visual inspection of the EGR system components, checking for vacuum leaks, testing the EGR valve, DPFE sensor, and EGR control solenoid, and scanning for any other related trouble codes.
5. How can I repair OBDII code P1408 in my 2002 Ford F150?
Repair methods may include cleaning or replacing the EGR valve, clearing any blockages in the EGR passages, replacing the DPFE sensor, fixing any vacuum leaks, or replacing the EGR control solenoid.
6. Can I continue driving my 2002 Ford F150 with OBDII code P1408?
It is not recommended to continue driving with the P1408 code, as it can lead to poor engine performance and potential damage if left unresolved. It's best to address the issue promptly.
7. Will resetting the OBDII code P1408 in my 2002 Ford F150 make it go away permanently?
Simply resetting the code without addressing the underlying issue will not make it go away permanently. The root cause of the problem must be identified and fixed to prevent the code from returning.
8. Is it possible to clear the OBDII code P1408 in my 2002 Ford F150 by disconnecting the battery?
Disconnecting the battery may clear the code temporarily, but it is not a recommended method for resolving the underlying issue causing the P1408 code. Proper diagnosis and repair are necessary.
9. How much does it cost to repair OBDII code P1408 in a 2002 Ford F150?
The cost of repairs can vary depending on the specific cause of the issue and whether you perform the repairs yourself or take your vehicle to a mechanic. Costs may range from a few hundred dollars to over a thousand dollars.
10. Can a DIY enthusiast fix OBDII code P1408 in a 2002 Ford F150?
Yes, a DIY enthusiast with the necessary tools and knowledge can often diagnose and repair the P1408 code themselves. However, if unsure, it's always best to seek professional help to avoid any further complications.
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