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To change the PCV valve on a 1986 Oldsmobile, first, locate the valve, which is typically found on the valve cover or intake manifold. Disconnect the hose attached to the old PCV valve, then twist and pull to remove it from its socket. Install the new PCV valve by pushing it into place and reattaching the hose securely. Finally, check for any leaks and ensure the engine runs smoothly.

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2mo ago

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