Throttle Body: Service and Repair
Removal & Installation and Disassembly & Reassembly1. DRAIN ENGINE COOLANT
2. DISCONNECT BATTERY NEGATIVE TERMINAL
3. REMOVE CYLINDER HEAD COVER NO.2
a. Remove the 3 bolts and nut, then remove the cylinder head cover No. 2.
4. SEPARATE ACCELERATOR CONTROL CABLE ASSEMBLY
a. Remove the wire of the accelerator control cable from the accelerator control cable support No. 2.
b. Loosen the nut.
c. Remove the cable end from the throttle lever, then separate the accelerator control cable.
5. REMOVE AIR CLEANER CAP SUB-ASSEMBLY
a. Disconnect the mass air flow meter connector.
b. Disconnect the 2 VSV connectors.
c. Remove the 2 wire harness clamps.
d. Disconnect the fuel vapor feed hose No. 1 from the VSV.
e. Disconnect the fuel vapor feed hose No. 3 from the VSV.
f. Disconnect the 3 vacuum hoses.
g. Loosen the air cleaner hose clamp bolt.
h. Unlock the 2 clamp hooks.
i. Remove the air cleaner cap together with the air cleaner hose.
6. REMOVE THROTTLE BODY ASSEMBLY
a. Disconnect the throttle position sensor connector.
b. Disconnect the ISC valve connector.
c. Disconnect the ventilation hose.
d. Disconnect the water by-pass hose No. 3.
e. Disconnect the water by-pass hose No. 2.
f. Remove the 2 bolts and 2 nuts, then remove the accelerator control cable bracket and throttle body.
g. Remove the gasket from the intake manifold.
7. REMOVE E.F.I. THROTTLE POSITION SENSOR
a. Remove the 2 screws, then remove the throttle position sensor.
8. REMOVE THROTTLE BODY IDLE AIR CONTROL VALVE ASSEMBLY
a. Remove the 3 screws, then remove the throttle body idling air control valve assembly.
b. Remove the gasket from the throttle body.
9. INSTALL THROTTLE BODY IDLE AIR CONTROL VALVE ASSEMBLY
a. Install a new gasket onto the throttle body.
b. Install the throttle body idle air control valve assembly with the 3 screws.
Torque: 3.7 N.m (38 kgf.cm, 33 in.lbf)
10. INSTALL E.F.I. THROTTLE POSITION SENSOR
a. Make sure that the throttle valve is fully closed.
b. With the throttle position sensor rotated 30 degrees to 45 degrees counterclockwise about the fully-closed position of the throttle valve, install the throttle position sensor onto the throttle body.
c. Rotate the throttle position sensor clockwise, then secure it with the 2 screws.
Torque: 2.0 N.m (20 kgf.cm, 18 in.lbf)
11. INSTALL THROTTLE BODY ASSEMBLY
a. Install a new gasket to the intake manifold.
b. Install the throttle body and accelerator control cable bracket with the 2 bolts and 2 nuts.
Torque: 22 N.m (224 kgf.cm, 16 ft.lbf)
12. INSTALL AIR CLEANER CAP SUB-ASSEMBLY
a. Install the air cleaner cap together with the air cleaner hose.
b. Lock the 2 clamp hooks.
c. Tighten the air cleaner hose clamp bolt.
Torque: 2.0 N.m (20 kgf.cm, 18 in.lbf)
d. Connect the 3 vacuum hoses.
e. Connect the fuel vapor feed hose No. 3 to the VSV.
f. Connect the fuel vapor feed hose No. 1 to the VSV.
g. Install the 2 wire harness clamps.
h. Connect the 2 VSV connectors.
i. Connect the mass air flow meter connector.
13. INSTALL ACCELERATOR CONTROL CABLE ASSEMBLY
a. Install the accelerator control cable into the throttle lever.
b. Tighten the nut.
c. Connect the accelerator control cable to the accelerator control cable support No. 2.
14. INSTALL CYLINDER HEAD COVER NO.2
a. Install the cylinder head cover No. 2 with the 3 bolts and nut.
Torque: 7.0 N.m (71 kgf.cm, 62 in.lbf)
15. CONNECT BATTERY NEGATIVE TERMINAL
Torque: 5.4 N.m (55 kgf.cm, 48 in.lbf)
16. ADD ENGINE COOLANT
17. CHECK FOR ENGINE COOLANT LEAKAGE