Throttle Position Sensor Installation

WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.

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NOTE:
If the TP sensor drive slot orientation is not aligned as shown, use a small flathead screwdriver to gently rotate the TP sensor drive slot clockwise to the wide open throttle (WOT) position as shown.

Place the throttle position (TP) sensor cover in the position as shown. Confirm the TP sensor drive slot orientation is aligned in the TP sensor cover as shown.
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Verify that the TP sensor cover gasket is secure and properly positioned.
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Grasp and hold the throttle body in the previously hand held upward position. Lightly depress the intermediate gear to verify that it is fully seated and the gears are engaged.
Rotate the throttle body plate to the WOT position as shown by arrow.
Position and install the TP sensor cover (1) to the throttle body. Hold the TP sensor cover in position.
If necessary for ease of the clip installation, secure a rubber band around the throttle body and TP sensor cover.
Fig 1: TP Sensor Cover Clip Installation Sequence
Courtesy of GENERAL MOTORS COMPANY

Install the NEW TP sensor cover clips in the sequence shown.