Ford Fusion: Fuel System - General Information - 1.5L EcoBoost (118kW/160PS) – I4 / Fuel System. Diagnosis and Testing
Symptom Chart(s)
Symptom Chart: Fuel System
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).
for information regarding Ford-specific diagnostic practices.
NOTE:
The following procedure diagnoses a slow to fill concern
only. For all other concerns, Refer to Powertrain Control/Emissions
Diagnosis (PC/ED) manual.
Symptom Chart
Condition
|
Possible Sources
|
Actions
|
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.GO to Pinpoint Test A
|
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.
|
|
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 - 1.5L EcoBoost (118kW/160PS) – I4, 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.
|
|
A3 CHECK THE FUEL TANK INLET CHECK VALVE |
-
Inspect the fuel tank inlet check valve for restriction or sticking.
Is the fuel tank 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 - 1.5L EcoBoost (118kW/160PS) – I4, Removal and Installation).
|
No |
INSTALL a new fuel tank.
|
|
Overview
NOTICE:
Repairs of the fuel system are to be achieved only by
replacement of the failed component(s). Repair of a fuel system
component should not be attempted...
Special Tool(s) /
General Equipment
310-D009
(D95L-7211-A)
Fuel Pressure Test Kit
Check
WARNING:
Before beginning any service procedure in this section,
refer to Safety Warnings in section 100-00 General Information...
Other information:
Special Tool(s) /
General Equipment
Vehicle/Axle Stands
Removal
NOTICE:
Suspension fasteners are critical parts that affect the
performance of vital components and systems. Failure of these fasteners
may result in major service expense...
Overview
The
parking brake system uses 2 switch activated, Electronic Control Unit
(ECU) controlled motors to apply and release the rear brake calipers.
The ABS module controls and
monitors the parking brake system and sets Diagnostic Trouble Codes
(DTCs) when a fault is present in the system...