2004 Chevrolet Malibu BaseFACTORY OEM SERVICE PROCEDURE

Fuel Pressure Relief Procedure

CAUTION: Refer to Battery Disconnect Caution in Cautions and Notices.
  1. Loosen the fuel filler cap in order to relieve the tank pressure. Do not tighten at this time.
  2. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  3. Disconnect the fuel pump electrical connector.
  4. Lower the vehicle.
  5. Start and run the engine until the fuel supply remaining in the fuel pipes is consumed. Engage the starter for 3.0 seconds in order to assure relief of any remaining pressure.
  6. Raise the vehicle.
  7. Connect the fuel pump electrical connector.
  8. Lower the vehicle.
  9. Disconnect the negative battery cable in order to avoid possible fuel discharge if an accidental attempt is made to start the engine. Refer toBattery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
Factory Service Tools

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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.

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