Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSTOYOTA2001LANDCRUISER V8-4.7L (2UZ-FE)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSCOOLANT TEMPERATURE SENSOR/SWITCH (FOR COMPUTER)TESTING AND INSPECTION
2001 Toyota Landcruiser V8-4.7L (2UZ-FE)
Coolant Temperature Sensor/Switch (For Computer): Testing and Inspection
2001 Toyota Landcruiser V8-4.7L (2UZ-FE)SECTION Testing and Inspection
ENGINE COOLANT TEMPERATURE (ECT) SENSOR
INSPECTION
1. DRAIN ENGINE COOLANT
2. REMOVE V-BANK COVER
3. REMOVE INTAKE AIR CONNECTOR
4. DISCONNECT THROTTLE BODY FROM INTAKE MANIFOLDS
a. Disconnect the accelerator cable from the throttle body.
b. Remove the 2 bolts and 2 nuts, and disconnect the throttle body from the intake manifold.
c. Remove the gasket.
5. REMOVE ECT SENSOR
a. Disconnect the ECT sensor connector.
b. Remove the ECT sensor and gasket.
6. INSPECT ECT SENSOR
Using an ohmmeter, measure the resistance between the terminals.
Resistance: Refer to the graph
If the resistance is not as specified, replace the ECT sensor.
7. REINSTALL ECT SENSOR
a. Install a new gasket and the ECT sensor.
Torque: 20.4 N.m (208 kgf.cm, 15 ft.lbf)
b. Connect the ECT sensor connector.
8. REINSTALL THROTTLE BODY TO INTAKE MANIFOLDS
a. Install a new gasket and the throttle body with the 2 bolts and 2 nuts.
Torque: 18 N.m (185 kgf.cm, 13 ft.lbf)
b. Connect the accelerator cable to the throttle body.
9. REINSTALL INTAKE AIR CONNECTOR
10. REFILL WITH ENGINE COOLANT
11. REINSTALL V-BANK COVER
INSPECTION
1. DRAIN ENGINE COOLANT
2. REMOVE V-BANK COVER
3. REMOVE INTAKE AIR CONNECTOR
4. DISCONNECT THROTTLE BODY FROM INTAKE MANIFOLDS
a. Disconnect the accelerator cable from the throttle body.
b. Remove the 2 bolts and 2 nuts, and disconnect the throttle body from the intake manifold.
c. Remove the gasket.
5. REMOVE ECT SENSOR
a. Disconnect the ECT sensor connector.
b. Remove the ECT sensor and gasket.
6. INSPECT ECT SENSOR
Using an ohmmeter, measure the resistance between the terminals.
Resistance: Refer to the graph
If the resistance is not as specified, replace the ECT sensor.
7. REINSTALL ECT SENSOR
a. Install a new gasket and the ECT sensor.
Torque: 20.4 N.m (208 kgf.cm, 15 ft.lbf)
b. Connect the ECT sensor connector.
8. REINSTALL THROTTLE BODY TO INTAKE MANIFOLDS
a. Install a new gasket and the throttle body with the 2 bolts and 2 nuts.
Torque: 18 N.m (185 kgf.cm, 13 ft.lbf)
b. Connect the accelerator cable to the throttle body.
9. REINSTALL INTAKE AIR CONNECTOR
10. REFILL WITH ENGINE COOLANT
11. REINSTALL V-BANK COVER
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.