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FAQs
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FAQs

  • Q Must I replace the gasket?

    A
    Gaskets are single-use and mandatory for every removal! OEM gaskets (e.g., Ford W717113-S300) feature crush-seal design.
    Our kits include pre-lubricated reinforced gaskets (-40°C to 650°C).
    Reference: SAE J2747 Section 5.2.1
  • Q Why does DTC P0401 persist after installing a new EGR valve?

    A
    95% of P0401 cases stem from uncleaned carbon deposits in the intake manifold. Follow this protocol:
    1. Remove EGR valve and thoroughly clean manifold channels with Liqui Moly Pro-line EGR Cleaner (penetrate 10cm deep)
    2. Perform ECU reset: Clear codes and run 'EGR Adaptation Learn' (For Ford IDS: Toolbox > Powertrain > EGR Learn)
    3. If unresolved, check EGR cooler blockage (airflow resistance must be <2.5 kPa)

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