Positive Crankcase Ventilation Valve and Tube Assembly

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Positive Crankcase Ventilation Valve and Tube Assembly

Courtesy of GENERAL MOTORS COMPANY

Callout	Component Name
Preliminary Procedure NOTE: These components have tamper-proof connections and cannot be disassembled. Inspect all positive crankcase ventilation (PCV) components prior to removal. Do not remove the PCV components unless a diagnostic or inspection procedure indicates replacement is necessary. Complete all camshaft cover inspections prior to inspecting or removing PCV components. If inspection indicates the camshaft cover requires replacement, all PCV components will be replaced with the cover.
1	Positive Crankcase Ventilation Hose Fastener CAUTION: Refer to Fastener Caution . Tighten 12 N.m (106 lb in)
2	Positive Crankcase Ventilation Valve Bolt (Qty: 2) Procedure Using a suitable tool, cut a slot in the tamper-resistant PCV bolt head and remove with a flat blade screwdriver. Discard the bolt. Using EN-50956 bit, install NEW bolts with NEW PCV valves and PCV hose assembly. Tighten 10 N.m (89 lb in) Special Tools EN-50956 Tamper Proof Drive Bit Equivalent regional tools: Special Tools .
3	Positive Crankcase Ventilation Hose Assembly and Positive Crankcase Ventilation Valves NOTE: The PCV valves and PCV tube assembly have tamper-proof connections and cannot be disassembled.