Toyota Tundra. Manual — part 2127

Fig. 60: Removing Fuel Pressure Switching Valve Assembly
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2. Pinch and pull the fuel tank main tube connector to disconnect the main tube connector from

the pipe.

INSPECTION

1. INSPECT FUEL PRESSURE SWITCHING VALVE

a. Measure the resistance according to the value(s) in the table below.

Standard Resistance

RESISTANCE REFERENCE

NOTE:



Check for foreign matter in the pipe and around the
connector. Clean if necessary. Foreign matter may damage
the O-ring or cause leaks in the seal between the pipe and
connector.



Do not use any tools to separate the pipe and connector.



Do not forcefully bend or twist the nylon tube.



Check for foreign matter on the pipe seal surface. Clean if
necessary.



Put the pipe and connector ends in plastic bags to prevent
damage and foreign matter contamination.



If the pipe and connector are stuck together, pinch the
connector between your fingers and turn it carefully to
disconnect it.

Tester Connection Condition Specified Condition

1 - Body ground

Always

10 Mohms or higher

2 - Body ground

1 -2

20°C (68°F)

5 to 10 ohms

2009 Toyota Tundra

2009 ENGINE Fuel (3UR-FBE) - Tundra

Fig. 61: Inspecting Fuel Pressure Switching Valve
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

If the result is not as specified, replace the valve.

b. Inspect the valve operation.

1. Check that air flows from port A to ports B and C.

Fig. 62: Checking Air Flows From Port A To Ports B And C
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2. Apply battery voltage across the terminals as shown in the illustration.

NOTE:

2009 Toyota Tundra

2009 ENGINE Fuel (3UR-FBE) - Tundra

3. Check that air flows from port A to port C. If the result is not as specified, replace the valve.

Fig. 63: Checking Air Flows From Port A To Port C
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

INSTALLATION

1. INSTALL FUEL PRESSURE SWITCHING VALVE ASSEMBLY

a. Connect the 3 fuel tank main tubes and install the fuel pressure switching valve.

HINT:

Push the parts together firmly until a "click" sound is heard.



Keep the valve as far away from the battery as possible.



Always turn the voltage on and off on the battery side, not
the valve side.

NOTE:



Before connecting the tube connectors to the pipes, check if
there is any damage or foreign matter in the connectors.



After the connection, check if the connectors and pipes are
securely connected by trying to pull them apart.

2009 Toyota Tundra

2009 ENGINE Fuel (3UR-FBE) - Tundra

b. Attach the lock claws to the connector by pushing down on the cover, as shown in the illustration.

2. INSTALL NO. 1 FUEL TUBE PROTECTOR

a. Install the No. 1 fuel tube protector with the nut.

Torque: 8.0 N*m (82 kgf*cm, 71 in.*lbf)

Fig. 65: Identifying No. 1 Fuel Tube Protector
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Fig. 64: Installing Fuel Pressure Switching Valve Assembly
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2009 Toyota Tundra

2009 ENGINE Fuel (3UR-FBE) - Tundra