Toyota Highlander manuals

Toyota Highlander Service Manual: Throttle body ASSY (3MZ-FE)

COMPONENTS

Throttle body ASSY


Throttle body ASSY


REPLACEMENT

1. DRAIN ENGINE COOLANT (See page 16-26 )

2. REMOVE FRONT SUSPENSION BRACE SUB-ASSY UPPER CENTER

(a) Remove the 2 nuts and upper brace.

3. REMOVE V-BANK COVER SUB-ASSY

 REMOVE V-BANK COVER SUB-ASSY


(a) Using a socket hexagon wrench 5, remove the 3 nuts.

(b) Remove the V-bank cover.

4. REMOVE AIR CLEANER INLET ASSY (See page 14-149 )

5. REMOVE AIR CLEANER ASSY (See page 14-149 )

6. REMOVE INTAKE AIR RESONATOR

REMOVE INTAKE AIR RESONATOR


(a) Remove the ventilation hose No. 2.

(b) Remove the fuel vapor feed hose from the 2 hose clamps.

(c) Loosen the air cleaner hose clamp bolt, and then remove the intake air resonator.

7. REMOVE THROTTLE BODY ASSY

REMOVE THROTTLE BODY ASSY


(a) Disconnect the throttle control motor & throttle position sensor connector.

(b) Disconnect the water by-pass hose No. 2.

(c) Disconnect the water by-pass hose No. 3.

REMOVE THROTTLE BODY ASSY


(d) Remove the 2 bolts, 2 nuts and throttle body.

(e) Remove the gasket.

8. INSTALL THROTTLE BODY ASSY

(a) Install a new gasket to the intake air connector.

(b) Install the throttle body with the 2 bolts and 2 nuts.

Torque: 11 NVm (112 kgfVcm, 8 ftVlbf) (c) Connect the water by-pass hose No. 3.

(d) Connect the water by-pass hose No. 2.

(e) Connect the throttle control motor & throttle position sensor connector.

9. INSTALL INTAKE AIR RESONATOR

10. INSTALL AIR CLEANER ASSY (See page 14-149 )

11. INSTALL AIR CLEANER INLET ASSY (See page 14-149 )

12. CHECK CONNECTION OF VACUUM HOSE (See page 14-149 )

13. ADD ENGINE COOLANT (See page 16-26 )

14. CHECK FOR ENGINE COOLANT LEAKS (See page 16-20 )

15. INSTALL V-BANK COVER SUB-ASSY

(a) Fit the 2 retainers and install the V-bank cover.

(b) Using a socket hexagon wrench 5, tighten the 3 nuts.

Torque: 7.9 NVm (81 kgfVcm, 70 in.Vlbf)

16. INSTALL FRONT SUSPENSION BRACE SUB-ASSY UPPER CENTER

(a) Install the upper brace with the 2 nuts.

Torque: 80 NVm (815 kgfVcm, 59 ftVlbf)

Inspection
1. INSPECT MASS AIR FLOW METER (a) Check the output voltage.  Apply battery voltage across terminals 1 (+B) and 2 (E2G).  Connect the positive (+) tester probe to terminal VG, ...

Knock sensor (3MZ-FE)
REPLACEMENT 1. DISCHARGE FUEL SYSTEM PRESSURE (See page 11-35 ) 2. DRAIN ENGINE COOLANT (See page 16-26 ) 3. REMOVE V-BANK COVER SUB-ASSY (See page 14-149 ) 4. REMOVE AIR CLEANER CAP SUB-ASSY (See ...

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