4 Runner 2WD L4-2.7L (3RZ-FE) (1996)
Fuel Pressure Release: Service and Repair
PRECAUTION
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Before working on the fuel system, disconnect the negative (-) terminal cable from the battery.
HINT: Any diagnostic trouble code retained by the ECM will be erased when the battery negative (-) terminal cable is removed from the battery.
Therefore, if necessary, read the diagnostic trouble code(s) before removing the negative (-) terminal cable from the battery.
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Do not smoke or work near an open flame when working on the fuel system.
FUEL PRESSURE RELEASE PROCEDURE
When disconnecting the high pressure fuel line, a large amount of gasoline will spill out, so observe these procedures:
(a) Put a container under the connection.
(b) Slowly loosen the connection.
(c) Disconnect the connection.
(d) Plug the connection with a rubber plug.
When connecting the flare nut or union bolt on the high pressure pipe union, observe these procedures:
Union Bolt Type:
(a) Always use a new gasket.
(b) Tighten the union bolt by hand.
(c) Tighten the union bolt to the specified torque.
Torque: 29 N.m (300 kgf.cm, 22 ft.lbf)
Flare Nut Type:
(a) Apply a light coat of engine oil to the flare and tighten the flare nut by hand.
(b) Using SST, tighten the flare nut to the specified torque. SST 09631-22020
HINT: Use a torque wrench with a fulcrum length of 30cm (11.81 in.).
Torque: 28 N.m (285 kgf.cm, 21 ft.lbf)