LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 2012 >> Econoline Base, Van Cargo >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 62 (Fuel System - General Information) >> General Procedures >> Fuel System Pressure Release
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Fuel System Pressure Release

WARNING: This page is about a different variant/trim than selected.
SPECIAL TOOLS CHART

G06064438
 Fuel Pressure Test Kit
310-D009 (D95L-7211-A) or equivalent
WARNING: Do not smoke, carry lighted tobacco or have an open flame of any type when working on or near any fuel-related component. Highly flammable mixtures are always present and may be ignited. Failure to follow these instructions may result in serious personal injury.
WARNING: Before working on or disconnecting any of the fuel tubes or fuel system components, relieve the fuel system pressure to prevent accidental spraying of fuel. Fuel in the fuel system remains under high pressure, even when the engine is not running. Failure to follow this instruction may result in serious personal injury.
WARNING: When handling fuel, always observe fuel handling precautions and be prepared in the event of fuel spillage. Spilled fuel may be ignited by hot vehicle components or other ignition sources. Failure to follow these instructions may result in serious personal injury.
WARNING: Do not carry personal electronic devices such as cell phones, pagers or audio equipment of any type when working on or near any fuel-related component. Highly flammable mixtures are always present and may be ignited. Failure to follow these instructions may result in serious personal injury.
  1. Disconnect the battery ground cable. For additional information, refer to BATTERY, MOUNTING AND CABLES .
  2. Remove the engine cover. For additional information, refer to INTERIOR TRIM AND ORNAMENTATION .
    3. NOTE: 6.8L shown in illustration, 4.6L and 5.4L similar.
    Fig 1: Locating Fuel Pressure Relief Valve
    G06143765Courtesy of FORD MOTOR CO.
  3. Remove the cap from the fuel pressure relief valve located on the fuel rail.
    4. NOTE: 6.8L shown in illustration, 4.6L and 5.4L similar.
    Fig 2: Locating Fuel Pressure Test Kit
    G06143766Courtesy of FORD MOTOR CO.
  4. Install the Fuel Pressure Test Kit onto the fuel pressure relief valve.
    5. NOTE: Open the manual valve slowly to relieve the system pressure. This may drain fuel from the fuel system. Place fuel in a suitable container.
    NOTE: 6.8L shown in illustration, 4.6L and 5.4L similar.
    Fig 3: Locating Manual Valve On Fuel Pressure Test Kit
    G06143767Courtesy of FORD MOTOR CO.
  5. Open the manual valve on the Fuel Pressure Test Kit and relive the fuel pressure.
    6. NOTE: 6.8L shown in illustration, 4.6L and 5.4L similar.
    Fig 4: Locating Fuel Pressure Relief Valve
    G06143765Courtesy of FORD MOTOR CO.
  6. Once fuel system service is complete, install the cap on the fuel pressure relief valve.
  7. Connect the battery ground cable. For additional information, refer to BATTERY, MOUNTING AND CABLES .
    8. NOTE: It may take more than one key cycle to pressurize the fuel system.
  8. Cycle the ignition key and wait 3 seconds to pressurize the fuel system. Check for leaks before starting the engine.
  9. Start the vehicle and check the fuel system for leaks.
scientia non olet · About LEMON Manuals