Lexus GS, SC 1998-06

Removal & Installation

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  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Relieve the fuel system pressure.
  4.  
  5. Disconnect the negative battery cable. Wait at least 90 seconds before performing any other work
  6.  
  7. Remove the fuel pump and sending gauge assembly.
  8.  
  9. Separate the fuel suction plate with sending gauge from the fuel pump, fuel filter, fuel pressure regulator and fuel return jet tube assembly.
  10.  

To install:

  1. Install the fuel filter, fuel pressure regulator and fuel return jet tube assembly to the fuel sending gauge assembly.
  2.  
  3. Install the fuel pump and sending gauge assembly.
  4.  
  5. Connect the negative battery cable.
  6.  

  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Relieve the fuel system pressure.
  4.  
  5. Disconnect the negative battery cable. Wait at least 90 seconds before performing any other work
  6.  
  7. Remove the fuel pump and sending gauge assembly.

    Click image to see an enlarged view

    Fig. Press down on the sender gauge claw (A), then slide the sender gauge upward.-2006 GS 300

  8.  
  9. Remove the fuel sending gauge from the fuel pump assembly as follows:


    1. Disconnect the fuel sender gauge connector.
    2.  
    3. Press down on the sender gauge claw. Then slide the sender gauge upward.
    4.  

  10.  

To install:

  1. Install the fuel sending gauge to the fuel pump assembly as follows:


    1. Set the fuel sender gauge to the No. 1 fuel sub-tank. Then slide the sender gauge downward to install it.
    2.  
    3. Connect the fuel sender gauge connector.
    4.  

  2.  
  3. Install the fuel pump and sending gauge assembly.
  4.  
  5. Connect the negative battery cable.
  6.  

  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Relieve the fuel system pressure.
  4.  
  5. Disconnect the negative battery cable. Wait at least 90 seconds before performing any other work
  6.  
  7. Remove the fuel pump and sending gauge assembly.
  8.  
  9. Disconnect the connector and slide the fuel sender gauge assembly out of the fuel suction plate.
  10.  

To install:

  1. Slide the fuel sender gauge assembly into the fuel suction plate, and connect the connector.
  2.  
  3. Install the fuel pump and sending gauge assembly.
  4.  
  5. Connect the negative battery cable.
  6.  



Click image to see an enlarged view

Fig. Fuel sender gauge assembly.-SC 300 and SC 400

  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Relieve the fuel system pressure.
  4.  
  5. Disconnect the negative battery cable. Wait at least 90 seconds before performing any other work
  6.  
  7. Remove or disconnect the following:

    Trunk floor mat
     
    Trunk trim cover
     
    Fuel sender gauge electrical connector
     
    7 mounting bolts and remove the fuel sender gauge assembly and gasket from the fuel tank
     

  8.  

To install:

  1. Install or connect the following:

    Fuel sender gauge assembly with a new gasket into the fuel tank and tighten the 7 mounting bolts to 31 inch lbs. (3.5 Nm).
     
    Fuel sender gauge electrical connector
     
    Trunk trim cover
     
    Trunk floor mat
     
    Negative battery cable
     

  2.  
  3. Start the engine; check the fuel system for leaks.
  4.  

 
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