GMC 12568580 Fuel Injection Air Meter Body (W/Throttle Actuator)

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To remove the air intake duct, the electrical connector and the evap canister purge line should be unfastened from throttle body. By so doing, we will disconnect EVAP purge line and a throttle body electrical connector. Remove the mounting bolts and separate the throttle body and gasket. Those were taken out while removing throttle body mounting bolts. Clean old gasket material on both throttle body and intake manifold then attach a new one. Tighten the holding down bolts. When reinstalling, reverse what you did when removing it.

The remainder of the installation is the reverse of removal.

The air intake duct should be removed to access the throttle body bore for inspection.

To install the throttle body, tighten the bolts to the specified torque and then follow the reverse steps of removal.

Drain the engine coolant, remove the heater inlet and outlet pipe retaining nuts, and set aside the pipes after loosening the hose clamps securing them to the heater coolant hoses.