Pinpoint Test HC: Fuel Delivery System: Introduction: Notes
WARNING:
CROWN VICTORIA POLICE INTERCEPTOR VEHICLES EQUIPPED WITH FIRE SUPPRESSION SYSTEM, REFER TO FIRE SUPPRESSION SYSTEM
FOR IMPORTANT SAFETY WARNINGS. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.
WARNING:
THE FUEL SYSTEM REMAINS UNDER PRESSURE AFTER THE ENGINE IS OFF. RELIEVE PRESSURE BEFORE REPAIRING. HIGHLY FLAMMABLE MIXTURES ARE PRESENT. TO RELEASE PRESSURE FROM THE FUEL SYSTEM, CARRY OUT THE FOLLOWING:
- CONNECT A ROTUNDA FUEL PRESSURE GAUGE 134R0087 OR EQUIVALENT.
- GRADUALLY OPEN THE TESTING KIT VALVE TO RELIEVE THE FUEL PRESSURE IN THE VEHICLE FUEL SYSTEM AND DRAIN THE FUEL INTO A SUITABLE CONTAINER OR RETURN IT TO THE FUEL TANK.
- TO AVOID UNNECESSARY FUEL SPILLAGE AND FIRE HAZARD, ANY TIME FUEL LINES ARE DISCONNECTED, THE IGNITION SWITCH MUST BE IN THE OFF POSITION UNLESS FUEL PUMP OPERATION IS REQUIRED FOR TEST PURPOSES.
FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.
CAUTION:
Use care to prevent combustion from fuel spillage. No smoking, open flames, or any kind of arcing.
SAFE FUEL HANDLING PRACTICES .
Gasoline, Methanol, and Methanol Blends .
FIRE .
- Report all fires to the appropriate authorities .
- Flames from methanol or methanol-gasoline blends can be invisible .
- Know the locations of portable fire extinguishers, fire blankets, fire alarms, and the eye/wash shower facilities. Know how to use them .
- Use a B or AFFF (light water) type fire extinguisher to fight flammable liquid fires .
FIRST AID .
- If gasoline has been swallowed, do not induce vomiting. Seek medical attention immediately!
- If methanol or methanol/gasoline blend has been swallowed, induce vomiting under the direction of a physician or a Poison Control Center. Seek medical attention immediately!
- When overcome by vapors move the victim to fresh air, if safe. If not breathing, give artificial respiration or cardiopulmonary resuscitation (CPR) as appropriate. Seek medical attention immediately!
- If splashed in eyes, flush with large amounts of water for 15 minutes. Remove contact lenses, if worn. Seek medical attention immediately!
- If splashed on skin, remove contaminated clothing. Wash skin thoroughly with soap and water .
HEALTH .
- All fuels can be harmful or fatal if swallowed .
- Be aware, if fuel is swallowed the onset of serious health effects can be delayed 12 to 24 hours .
- Fuels and products containing methanol (windshield washer fluid) can cause blindness if swallowed .
- All fuel vapors can be harmful if inhaled .
- All fuels can be harmful if absorbed through the skin .
- All fuels are irritating to the eyes and respiratory system .
- Some fuels made with gasoline contain benzene which is a cancer-causing agent .
HANDLING .
- Use flammable liquid handling precautions .
- Wear chemical goggles and nitrile gloves. Additional protective clothing and equipment may be necessary in some instances .
- Keep flammable liquids in approved, labeled, closed containers .
- Use in well ventilated areas and control vapors. Be aware that vapors are not visible, are heavier than air, can travel along the floor, and settle in lower areas .
- When transferring flammable liquids, bond the receiving container to the source and ground the source to the earth .
- Do not smoke or use heat/spark producing equipment near vapors .
- Do not smoke, eat, or drink where these products are handled, processed, or stored .
- Never siphon by mouth .
- Wash hands thoroughly after handling any fuel .
SPILLS .
- Notify the proper authorities in the event of any spill you are not trained to clean up .
- Stop, contain, and clean up small spills with an absorbent material .
NOTE:
Replacement fuel injectors may not be the same color as the original injectors in the vehicle. Verify the replacement injector is correct for the application by part number.
This pinpoint test is intended to diagnose the following:
- chassis components
- engine vacuum
- fuel pressure
- fuel supply line
- fuel supply
- fuel filter (9155)
- fuel injector(s) (9F593)
- fuel pump (9H307)
NOTE:
With the engine running, the FRP PID value may be 48-70 kPa (7-10 psi) higher than a fuel pressure reading taken with a mechanical gauge.
NOTE:
For fuel pressure specifications using a mechanical gauge, see FUEL PRESSURE SPECIFICATIONS
.
FUEL SYSTEM SPECIFICATION CHART (KEY ON, ENGINE OFF VALUES)
| Application | Engine | Fuel System Type | FRP PID Fuel Pressure (kPa) | FRP PID Fuel Pressure (psi) |
|---|---|---|---|---|
| Focus | 2.0L | ERFS (1) | 240-485 | 35-70 |
| Focus | 2.3L | ERFS (1) | 240-485 | 35-70 |
| Fusion/Milan | 2.3L | MRFS (2) | - | - |
| Five Hundred Freestyle / Montego | 3.0L | ERFS (1) | 240-485 | 35-70 |
| Fusion/Milan/Zephyr | 3.0L | MRFS (2) | - | - |
| Taurus | 3.0L | ERFS (1) | 240-485 | 35-70 |
| LS | 3.9L | ERFS (1) | 240-485 | 35-70 |
| Mustang | 4.0L | ERFS (1) | 240-485 | 35-70 |
| Mustang GT | 4.6L | ERFS (1) | 240-485 | 35-70 |
| Crown Victoria / Grand Marquis / Town Car | 4.6L | ERFS (1) | 240-485 | 35-70 |
| Ford GT | 5.4L | ERFS (1) | 240-485 | 35-70 |
| Escape/Mariner | 2.3L | ERFS (1) | 240-485 | 35-70 |
| Escape/Mariner | 3.0L | ERFS (1) | 240-485 | 35-70 |
| Ranger | 2.3L | MRFS (2) | - | - |
| Ranger | 3.0L | MRFS (2) | - | - |
| Ranger | 4.0L | MRFS (2) | - | - |
| Freestar | 3.9L | MRFS (2) | - | - |
| Freestar/Monterey | 4.2L | MRFS (2) | - | - |
| Explorer/Mountaineer | 4.0L | ERFS (1) | 240-485 | 35-70 |
| Explorer/Mountaineer | 4.6L | ERFS (1) | 240-485 | 35-70 |
| F-150 | 4.2L | ERFS (1) | 240-485 | 35-70 |
| F-150 | 4.6L | ERFS (1) | 240-485 | 35-70 |
| F-150, Mark LT | 5.4L | ERFS (1) | 240-485 | 35-70 |
| E-Series | 4.6L | ERFS (1) | 240-485 | 35-70 |
| E-Series | 5.4L | ERFS (1) | 240-485 | 35-70 |
| E-Series | 6.8L | ERFS (1) | 240-485 | 35-70 |
| Expedition/Navigator | 5.4L | ERFS (1) | 240-485 | 35-70 |
| F-Super Duty | 5.4L | ERFS (1) | 240-485 | 35-70 |
| F-Super Duty | 6.8L | ERFS (1) | 240-485 | 35-70 |
Fuel System Type Definitions:
- Electronic Returnless Fuel System (ERFS):
This type of fuel delivery system does not return fuel to the fuel tank by means of a return line. This system does not incorporate a mechanical pressure regulator. Pressure is controlled by continuously varying the fuel pump speed through the fuel pump driver module (FPDM). All vehicles equipped with ERFS use a fuel rail pressure (FRP) sensor.
- Mechanical Returnless Fuel System (MRFS):
This type of fuel delivery system does not return fuel to the fuel tank by means of a return line. Fuel pressure is controlled by a mechanical pressure regulator located on the fuel pump module in the fuel tank. Vehicles equipped with MRFS do not use a fuel rail pressure (FRP) sensor.