2005 Chevrolet Blazer Throttle Body

You need to turn ON the ignition, with the engine OFF. next, use a scan tool to observe the parameter for the TP sensor. then depress the accelerator pedal to the floor, and release the accelerator pedal. And finally, verify the throttle position has gone from 0-100 percent and back to 0 percent.

You need to clean the throttle body bore and the throttle valve plate using a clean shop towel with GM Top Engine Cleaner, P/N 1052626, or an equivalent product.

The recommended torque is 9 Nm (80 lb in).

You need to remove the air cleaner outlet duct, disconnect the accelerator cable, remove the accelerator cable from the accelerator control cable bracket and the cable routing bracket, disconnect the accelerator cable, remove the left closeout/insulator panel, the accelerator cable, the accelerator cable panel insulator retainer, squeeze the accelerator cable tangs and push the cable through the bulkhead, then remove the accelerator cable.

You need to turn OFF the ignition, remove the air cleaner outlet resonator, next disconnect the idle air control (IAC) valve harness connector, then remove the IAC valve mounting screws, and lastly remove the IAC valve and O-ring.