From the manual: 5.7L V-8 The PCV valve is mounted into the top of the intake manifold, located to the right / rear of the throttle body (Fig. 12). The PCV valve is sealed to the intake manifold with 2 o-rings (Fig. 13). (1) Remove PCV valve by rotating counter-clockwise 90 degrees until locating tabs have been freed. After tabs have cleared, pull valve straight up from intake manifold. (2) After valve is removed, check condition of 2 valve o-rings.
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