AutoCodes - OBDII Code List - P1408 FORD

P1408 FORD - EGR Flow Out Of Self-Test Range

Repair Importance Level: 2/3
Repair Difficulty Level: 2/3    What is this?
Table of contents

P1408 FORD Possible Causes

  • Faulty Exhaust Gas Recirculation (EGR) Valve
  • Exhaust Gas Recirculation (EGR) Valve Vacuum hose off or defective
  • Plugged Exhaust Gas Recirculation (EGR) Valve

How do I fix code P1408 FORD?

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

Tech Notes

Replace an EGR Valve 1997 Ford F150




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Cost of diagnosing the P1408 FORD code

Labor: 1.0

The cost of diagnosing the P1408 FORD code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1408 Ford Description

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. The amount of exhaust gas recirculated varies from zero with a cold engine to a fixed rate for a hot engine with intermediate load and low engine speed.
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.
OBDII Code P1408 Ford - EGR Flow Out Of Self-Test Range - AutoCodes.com

P1408 FORD More Information

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