Toyota Highlander Service Manual: Throttle body ASSY (2AZ-FE)
COMPONENTS
REPLACEMENT
1. DRAIN ENGINE COOLANT (See page 16-6 )
2. REMOVE AIR CLEANER CAP WITH AIR CLEANER HOSE (See page 14-24 )
3. REMOVE THROTTLE BODY ASSY
(a) Disconnect the throttle control motor & throttle position sensor connector.
(b) Disconnect the vacuum hose from the throttle body.
(c) Disconnect the 2 water by-pass hoses.
(d) Remove the 4 bolts, fuel pipe support and throttle body.
(e) Remove the gasket.
4. INSTALL THROTTLE BODY ASSY
(a) Install a new gasket to the intake manifold, as shown in the illustration.
(b) Install the throttle body and fuel pipe support with the 4 bolts.
Torque: 30 NVm (305 kgfVcm, 22 ftVlbf) (c) Connect the 2 water by-pass hoses to the throttle body.
(d) Connect the throttle control motor & throttle position sensor connector.
(e) Connect the vacuum hose to the throttle body.
5. INSTALL AIR CLEANER CAP WITH AIR CLEANER HOSE (See page 14-24 )
6. ADD ENGINE COOLANT (See page 16-6 )
7. CHECK FOR ENGINE COOLANT LEAKS (See page 16-1 )
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 3
( ...
Knock sensor (2AZ-FE)
REPLACEMENT
1. DRAIN ENGINE COOLANT (See page 16-6 )
2. REMOVE AIR CLEANER CAP WITH AIR CLEANER HOSE (See page 14-24 )
3. REMOVE THROTTLE BODY ASSY (See page 10-6 )
4. REMOVE INTAKE MANIFOLD
...
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