Solstice 2006-2008, Sky 2007-2008

Relieving Fuel System Pressure

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High Pressure Side




CAUTION
Fuel that flows out at high pressure can cause serious injury to the skin and eyes. ALWAYS depressurize the fuel system before removing components that are under high fuel pressure.


CAUTION
Gasoline or gasoline vapors are highly flammable. A fire could occur if an ignition source is present. Never drain or store gasoline or diesel fuel in an open container, due to the possibility of fire or explosion. Have a dry chemical (Class B) fire extinguisher nearby.


CAUTION
Remove the fuel tank cap and relieve the fuel system pressure before servicing the fuel system in order to reduce the risk of personal injury. After you relieve the fuel system pressure, a small amount of fuel may be released when servicing the fuel lines, the fuel injection pump, or the connections. In order to reduce the risk of personal injury, cover the fuel system components with a shop towel before disconnection. This will catch any fuel that may leak out. Place the towel in an approved container when the disconnection is complete.

  1. Install a scan tool to the vehicle and command the fuel pump relay OFF, allowing the low pressure fuel pump to shut off.
  2.  
  3. Start the vehicle and allow the engine to idle until the engine stops. The engine will stop in approximately 20-30 seconds.
  4.  
  5. Turn the ignition OFF.
  6.  
  7. Using the scan tool, verify that there is little to no fuel pressure, if there still is fuel pressure repeat step 2.
    WARNING
    If a scan tool is not available, WAIT at LEAST 2 hours after the engine has been run, before removing the high pressure fuel line.

  8.  
  9. Remove the high pressure fuel line.
  10.  

Low Pressure Side W/O Fuel Gauge




CAUTION
Gasoline or gasoline vapors are highly flammable. A fire could occur if an ignition source is present. Never drain or store gasoline or diesel fuel in an open container, due to the possibility of fire or explosion. Have a dry chemical (Class B) fire extinguisher nearby.


CAUTION
Remove the fuel tank cap and relieve the fuel system pressure before servicing the fuel system in order to reduce the risk of personal injury. After you relieve the fuel system pressure, a small amount of fuel may be released when servicing the fuel lines, the fuel injection pump, or the connections. In order to reduce the risk of personal injury, cover the fuel system components with a shop towel before disconnection. This will catch any fuel that may leak out. Place the towel in an approved container when the disconnection is complete.

  1. Loosen the fuel fill cap in order to relieve the fuel tank vapor pressure.
  2.  
  3. Remove the engine cover, if required.
  4.  
  5. Remove the fuel rail service port cap.
  6.  
  7. Wrap a shop towel around the fuel rail service port and using a small flat bladed tool, depress (open) the fuel rail test port valve.
  8.  
  9. Remove the shop towel from around the fuel rail service port, and place in an approved gasoline container.
  10.  
  11. Install the fuel rail service port cap.
  12.  
  13. Install fuel cap.
  14.  

Low Pressure Side With Fuel Gauge




CAUTION
Gasoline or gasoline vapors are highly flammable. A fire could occur if an ignition source is present. Never drain or store gasoline or diesel fuel in an open container, due to the possibility of fire or explosion. Have a dry chemical (Class B) fire extinguisher nearby.


CAUTION
Remove the fuel tank cap and relieve the fuel system pressure before servicing the fuel system in order to reduce the risk of personal injury. After you relieve the fuel system pressure, a small amount of fuel may be released when servicing the fuel lines, the fuel injection pump, or the connections. In order to reduce the risk of personal injury, cover the fuel system components with a shop towel before disconnection. This will catch any fuel that may leak out. Place the towel in an approved container when the disconnection is complete.

  1. Remove the engine cover, if required.
  2.  
  3. Loosen the fuel fill cap in order to relieve the fuel tank vapor pressure.
  4.  
  5. Remove the fuel rail service port cap.
  6.  
  7. Wrap a shop towel around the fuel rail service port.
  8.  
  9. Connect the adapter to the fuel rail service port.
  10.  
  11. Connect service port adapter to pressure tester.
  12.  
  13. Place the relief hose on the tester into an approved gasoline container.
  14.  
  15. Open the valve on the tester in order to bleed any fuel from the fuel rail.
  16.  
  17. Close the valve on the tester.
  18.  
  19. Remove the relief hose on the tester from the approved gasoline container.
  20.  
  21. Disconnect service port adapter and tester.
  22.  
  23. Install the fuel rail service port cap.
  24.  
  25. Install fuel cap.
  26.  

 
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