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Home >> Oldsmobile >> 1990 >> Toronado Base, 4T60/ME9 >> Repair and Diagnosis >> Engine Performance >> Remove, Overhaul & Install >> Engine Controls - Remove/Install/Overhaul >> Fuel System (PFI) >> Fuel Pressure Relief

Fuel Pressure Relief

  1. Fuel system is under pressure. Pressure must be relieved prior to servicing fuel system. Fuel pressure may be relieved by using one of 2 different methods.
  2. One method is to disconnect fuel pump at rear body connector. Start engine and allow to run until it stops. Operate starter for 3 seconds to remove remaining fuel from fuel lines. Reconnect fuel pump once repair is completed.
  3. The other method is to install Fuel Pressure Gauge (J-34730-1) on fuel pressure connection. Wrap shop towel around pressure connection when installing fuel pressure gauge to absorb fuel leakage.
  4. Place gauge bleed hose in container. Open bleed valve to bleed fuel pressure.