Impala V8-5.3L (2008)
5. Remove the throttle body bolts (538).
6. Remove the throttle body (508).
7. Remove and discard the throttle body gasket (509).
Installation Procedure
Important: DO NOT reuse the throttle body gasket. Install a NEW gasket during assembly.
1. Install a NEW throttle body gasket (509). Align the locating tab of the gasket with the notch in the manifold.
2. Position the throttle body (508) to the intake manifold.
Notice: Refer to Fastener Notice.
3. Install the throttle body bolts (538).
Tighten the bolts to 10 N.m (89 lb in).