Mitsubishi Car 1999-05

Relieving Fuel System Pressure

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CAUTION
Fuel injection systems remain under pressure after the engine has been turned OFF. Properly relieve fuel pressure before disconnecting any fuel lines. Failure to do so may result in fire or personal injury.

  1. Turn the ignition to the OFF position.
  2.  
  3. Loosen the fuel filler cap to release fuel tank pressure.
  4.  


CAUTION
Observe all applicable safety precautions when working around fuel. Whenever servicing the fuel system, always work in a well ventilated area. Do not allow fuel spray or vapors to come in contact with a spark or open flame. Keep a dry chemical fire extinguisher near the work area. Always keep fuel in a container specifically designed for fuel storage; also, always properly seal fuel containers to avoid the possibility of fire or explosion.

  1. For the Mirage, Diamante, and 1994-00 Galant, remove the rear seat cushion, then remove the service cover and detach the fuel pump harness connector.
  2.  
  3. For the 1990-93 FWD Galant, detach the fuel pump harness connector located in the area of the fuel tank. It may be necessary to raise the vehicle to access the connector.
  4.  
  5. For the 1990-93 AWD Galant, remove the carpet from the trunk, locate the fuel tank wiring at the pump access cover, then detach the wiring.
  6.  
  7. Start the vehicle and allow it to run until it stalls from lack of fuel. Turn the key to the OFF position.
  8.  
  9. Disconnect the negative battery cable, then attach the fuel pump connector. Install the access cover, cushion or carpet as necessary.
  10.  
  11. Wrap shop towels around the fitting that is being disconnected to absorb residual fuel in the lines.
  12.  
  13. Place shop towels into proper safety container.
  14.  

  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Turn the ignition to the OFF position.
  4.  
  5. Loosen the fuel filler cap to release fuel tank pressure.
  6.  
  7. Detach the fuel pump harness connector located near the fuel tank. It may be necessary to raise the vehicle to access the connector.
  8.  
  9. Start the vehicle and allow it to run until it stalls from lack of fuel. Turn the key to the OFF position.
  10.  
  11. Disconnect the negative battery cable, then reconnect the fuel pump connector. Install the access cover, cushion or carpet as necessary.
  12.  
  13. Wrap shop towels around the fitting that is being disconnected to absorb residual fuel in the lines.
  14.  
  15. Place shop towels into proper safety container.
  16.  

  1. Turn the ignition to the OFF position.
  2.  
  3. Loosen the fuel filler cap to release fuel tank pressure.
  4.  
  5. Remove the driver side instrument panel side cover and disconnect the fuel pump relay.
  6.  
  7. Start the vehicle and allow it to run until it stalls from lack of fuel. Turn the key to the OFF position.
  8.  
  9. Disconnect the negative battery cable, then reconnect the fuel pump relay. Install the side cover.
  10.  
  11. Wrap shop towels around the fitting that is being disconnected to absorb residual fuel in the lines.
  12.  
  13. Place shop towels into proper safety container.
  14.  

  1. Turn the ignition to the OFF position.
  2.  
  3. Loosen the fuel filler cap to release fuel tank pressure.
  4.  
  5. For the Mirage and Eclipse, remove the rear seat cushion, then remove the service cover and disconnect the fuel pump harness connector.
  6.  
  7. For the FWD Galant, Diamante and 3000GT, detach the fuel pump harness connector located near the fuel tank. It may be necessary to raise the vehicle to access the connector.
  8.  
  9. For the AWD Galant, remove the carpet from the trunk, locate the fuel tank wiring at the pump access cover, then detach the wiring.
  10.  
  11. Start the vehicle and allow it to run until it stalls from lack of fuel. Turn the key to the LOCK (OFF) position.
  12.  
  13. On 2005 Eclipse, crank the engine for two seconds or more. If the engine does not start, turn the ignition switch to the LOCK (OFF) position. If the engine starts, stop it naturally and turn the ignition switch to the LOCK (OFF) position.
  14.  
  15. Disconnect the negative battery cable, then reconnect the fuel pump connector. Install the access cover and rear seat cushion.
  16.  
  17. Wrap shop towels around the fitting that is being disconnected to absorb residual fuel in the lines.
  18.  
  19. Place shop towels into proper safety container.

    Click image to see an enlarged view

    Fig. Location of the fuel pump connector-Lancer shown, other models similar

  20.  

 
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