Throttle Body: Service and Repair

THROTTLE BODY

On-Vehicle Inspection
- Check that throttle valve lever moves smoothly.

Removal
1) Disconnect negative cable at battery.
2) Drain cooling system.
3) Disconnect accelerator cable from throttle body.
4) Disconnect air cleaner outlet hose from throttle body.
5) Disconnect electric coupler from TP sensor and IAC valve.
6) Remove throttle body from intake manifold.
7) Disconnect engine coolant hoses from throttle body.

Disassembly

NOTE: While disassembling and assembling throttle body, use special care not to deform levers on throttle valve shaft or cause damage to any other parts.

1) Remove TP sensor and IAC valve from throttle body.

Cleaning
Clean throttle body bore and idle air passage by blowing compressed air.

NOTE: TP sensor, idle air control valve or other components containing rubber must not be placed in a solvent or cleaner bath. A chemical reaction will cause these parts to swell, harden or get distorted.

Reassembly
1) Install IAC valve to throttle body referring to "IAC valve Installation" section.
2) Install TP sensor to throttle body referring to "TP sensor Installation" section.

Installation
1) Clean mating surfaces and install throttle body gasket to intake manifold.
Use new gasket.
2) Connect engine coolant hoses.
3) Install throttle body to intake manifold.
4) Connect coupler to TP sensor and IAC valve securely.
5) Install air cleaner outlet hose and pipe.
6) Connect accelerator cable and adjust cable play to specification.
7) Refill cooling system.
8) Connect negative cable at battery.