T100 SR5 Extra Cab Pickup 4WD V6-3.4L (5VZ-FE) (1998)
(n) Disconnect the vacuum sensing hose from the fuel pressure regulator, and plug the hose end.
(o) Measure the fuel pressure at idle.
Fuel pressure:
265-304 kPa (2.7-3.1 kgf/sq.cm, 38-44 psi)
(p) Reconnect the vacuum sensing hose to the fuel pressure regulator.
(q) Measure the fuel pressure at idle.
Fuel pressure:
226-265 kPa (2.3-2.7 kgf/sq.cm, 33-38 psi)
If pressure is not as specified, check the vacuum sensing hose and fuel pressure regulator.
(r) Stop the engine.
(5) Check that the fuel pressure remains as specified for 5 minutes after the engine has stopped.
Fuel pressure:
147 kPa (1.5 kgf/sq.cm, 21 psi) or more
If pressure is not as specified, check the fuel pump, pressure
regulator and/or injectors.
(t) After checking fuel pressure, disconnect the negative (-)
terminal cable from the battery and carefully remove the SST to prevent gasoline from splashing.
SST 09268-45012
(u) Remove the other union bolt, 3 gaskets and fuel pipe from the delivery pipes.
(v) Reinstall the fuel pipe with 4 new gaskets and the 2 union bolts.
Torque:34.3 N.m (350 kgf.cm, 25 ft.lbf)
(w) Reconnect the negative (-) terminal cable to the battery.
(x) Check for fuel leakage.