Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD1999EXPLORER 4WD V6-4.0L VIN EREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTFUEL DELIVERY AND AIR INDUCTIONFUEL SUPPLY LINESERVICE AND REPAIR
1999 Ford Explorer 4WD V6-4.0L VIN E
Fuel Supply Line: Service and Repair
1999 Ford Explorer 4WD V6-4.0L VIN ESECTION Service and Repair
REMOVAL
WARNING
^ DO NOT SMOKE OR CARRY LIGHTED TOBACCO OR OPEN FLAME OF ANY TYPE WHEN WORKING ON OR NEAR ANY FUEL RELATED COMPONENTS. HIGHLY FLAMMABLE MIXTURES ARE ALWAYS PRESENT AND MAY BE IGNITED. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.
^ FUEL IN THE FUEL SYSTEM REMAINS UNDER HIGH PRESSURE EVEN WHEN THE ENGINE IS NOT RUNNING. BEFORE WORKING ON OR DISCONNECTING ANY OF THE FUEL LINES OR FUEL SYSTEM COMPONENTS, THE FUEL SYSTEM PRESSURE MUST BE RELIEVED. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.
1. Relieve fuel pressure.
2. Remove the upper intake manifold.
3. Disconnect fuel supply line.
4. Remove the four bolts and the fuel supply line at the fuel injection supply manifold.
5. Remove the fuel supply line bracket bolt and the fuel supply line.
INSTALLATION
1. To install, reverse the removal procedure.
CAUTION: Use O-rings that are made of special fuel resistant material. Use of ordinary O-rings can cause the fuel system to leak. Do not reuse O-rings.
NOTE: Lubricate the new O-rings with Super Premium SAE 10W-30, XO-10W30-DSP or equivalent meeting Ford specification WSS-M2C153-G, to aid installation.
WARNING
^ DO NOT SMOKE OR CARRY LIGHTED TOBACCO OR OPEN FLAME OF ANY TYPE WHEN WORKING ON OR NEAR ANY FUEL RELATED COMPONENTS. HIGHLY FLAMMABLE MIXTURES ARE ALWAYS PRESENT AND MAY BE IGNITED. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.
^ FUEL IN THE FUEL SYSTEM REMAINS UNDER HIGH PRESSURE EVEN WHEN THE ENGINE IS NOT RUNNING. BEFORE WORKING ON OR DISCONNECTING ANY OF THE FUEL LINES OR FUEL SYSTEM COMPONENTS, THE FUEL SYSTEM PRESSURE MUST BE RELIEVED. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.
1. Relieve fuel pressure.
2. Remove the upper intake manifold.
3. Disconnect fuel supply line.
4. Remove the four bolts and the fuel supply line at the fuel injection supply manifold.
5. Remove the fuel supply line bracket bolt and the fuel supply line.
INSTALLATION
1. To install, reverse the removal procedure.
CAUTION: Use O-rings that are made of special fuel resistant material. Use of ordinary O-rings can cause the fuel system to leak. Do not reuse O-rings.
NOTE: Lubricate the new O-rings with Super Premium SAE 10W-30, XO-10W30-DSP or equivalent meeting Ford specification WSS-M2C153-G, to aid installation.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.