Ford Fiesta Manuals

Ford Fiesta: Fuel System - General Information - 1.6L EcoBoost (132kW/180PS) – Sigma / Fuel System. Diagnosis and Testing

Ford Fiesta 2014 - 2019 Service Manual / Fuel System / Fuel System - General Information - 1.6L EcoBoost (132kW/180PS) – Sigma / Fuel System. Diagnosis and Testing

Symptom Chart(s)

Symptom Chart

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

NOTE: The following procedure diagnoses a slow to fill concern only. For all other concerns, refer to Refer to Powertrain Control/Emissions Diagnosis (PC/ED) manual.

Symptom Possible Sources Action
  • Slow to fill
  • Fuel tank filler pipe
  • Fuel tank filler pipe vent tube, if equipped
  • Evaporative Emission (EVAP) system
  • Fuel tank inlet check valve (part of the fuel tank)
  • Fuel level vent valve (part of the fuel tank)
  • Refer to Diagnostic Routine A: Slow to Fill.
  • All other fuel system concerns
  • Fuel system components
  • Refer to Powertrain Control/Emissions Diagnosis (PC/ED) manual.

Diagnostic Routine(s)

Slow to Fill

Normal Operation and Fault Conditions

Under normal operation, fuel should flow at a steady rate through the fuel tank filler pipe into the fuel tank. As fuel enters the fuel tank air is vented through the filler pipe or the ORVR system.


PINPOINT TEST A: SLOW TO FILL
A1 CHECK COMPONENTS FOR SIGNS OF DAMAGE
  • Visually inspect the following components for signs of damage:
    • Fuel tank filler pipe
    • Fuel tank filler pipe vent tube, if equipped
    • EVAP system
    • Fuel tank inlet check valve (part of the fuel tank)
    • Fuel level vent valve (part of the fuel tank)

Was the cause of the concern found?
Yes REPAIR or INSTALL new components to correct the concern.
No GO to A2

A2 CHECK THE FUEL TANK FILLER PIPE ASSEMBLY FOR BLOCKAGE OR RESTRICTION
  • Remove the fuel tank filler pipe assembly.
    REFER to: Fuel Tank Filler Pipe (310-01A Fuel Tank and Lines - 1.6L Duratec-16V Ti-VCT (88kW/120PS) – Sigma, Removal and Installation).
  • Inspect the fuel tank filler pipe and fuel tank filler pipe vent tube (if equipped) for a blockage or restriction.

Is the fuel tank filler pipe or fuel tank filler pipe vent tube (if equipped) blocked or restricted?
Yes If possible, REPAIR the blockage or restriction. If the blockage or restriction cannot be repaired, INSTALL a new fuel tank filler pipe or fuel tank filler pipe vent tube.
No GO to A3

A3 CHECK THE FUEL TANK INLET CHECK VALVE
  • Inspect the fuel tank inlet check valve for restriction or sticking.

Is the fuel tank filler pipe inlet check valve restricted or sticking?
Yes If possible, REPAIR the restriction. If the restriction cannot be repaired, INSTALL a new fuel tank.
REFER to: Fuel Tank (310-01A Fuel Tank and Lines - 1.6L Duratec-16V Ti-VCT (88kW/120PS) – Sigma, Removal and Installation).
No INSTALL a new fuel tank.


    Fuel System - Overview. Description and Operation

    Overview The fuel system: is a variable speed Closed Loop Pressure Control (CLPC) Fuel System with Gasoline Turbocharged Direct Injection (GTDI)...

    Fuel System Pressure Release. General Procedures

    Pressure release NOTE: The fuel pump relay fuse is located in the BJB , location F11. Remove the fuel pump relay fuse. NOTE: It may take up to several minutes before the engine stalls...

    Other information:

    Ford Fiesta 2014 - 2019 Service Manual: Oil Cooler. Removal and Installation


    Special Tool(s) / General Equipment Strap Wrench Oil Drain Equipment Locking Pliers Materials Name Specification Engine Oil - SAE 5W-20 - Synthetic Blend Motor OilXO-5W20-Q1SP WSS-M2C945-B1  Removal NOTE: Removal steps in this procedure may contain installation details...

    Ford Fiesta 2014 - 2019 Service Manual: Wheels and Tires. Diagnosis and Testing


    Preliminary Inspection Verify the customer concern by carrying out a road test on a smooth road. If any vibrations are apparent, Refer to the Symptom Chart: NVH. To maximize tire performance, inspect for signs of incorrect inflation and uneven wear, which may indicate a need for balancing, rotation or front suspension alignment...

    Categories

    Brake Drum. Removal and Installation

    Removal

    NOTE: Removal steps in this procedure may contain installation details.

      WARNING: Before beginning any service procedure in this manual, refer to health and safety warnings in section 100-00 General Information. Failure to follow this instruction may result in serious personal injury.

    Refer to: Health and Safety Precautions (100-00 General Information, Description and Operation).
    Remove the wheel and tire.
    Refer to: Wheel and Tire (204-04A Wheels and Tires, Removal and Installation).

    read more

    Copyright © 2025 www.fofiesta7.com