Tacoma 2WD V6-3.4L (5VZ-FE) (1995)
EGR Valve: Testing and Inspection
Note: Installation is in the reverse order of removal.
1. DRAIN ENGINE COOLANT.
2. REMOVE EGR PIPE.
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Remove the 6 nuts, EGR pipe and 2 gaskets.
INSTALLATION HINT: Install 2 new gaskets.
Torque:
18.5 Nm (14 ft lb) for nut "A" in the image above.
8.0 Nm (71 in lb) for nut "B" in the image above.
3. REMOVE EGR GAS TEMPERATURE SENSOR.
4. REMOVE EGR VALVE.
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Disconnect these hoses from the EGR valve:
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Vacuum hose (from VSV for EGR).
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EGR hose (from EGR vacuum modulator).
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Water hose (from water bypass pipe).
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Water bypass hose (from IAC valve).
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Remove the 2 nuts, EGR valve and gasket.
Torque: 18.5 Nm (14 ft lb)
INSTALLATION HINT: Use a new gasket.
5. INSPECT EGR VALVE.
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Check for sticking and heavy carbon deposits.
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If a problem is found, replace the EGR valve.