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Porsche 911 Problems

Engine Valve Guide Wear on Porsche 911

Problem Description and Possible Solution

Engine issues related to valve guide wear are common. Oil consumption, smoking at first startup, and valve train noise are all symptomatic of loose guides and worn valve stems. The valve train is complex and should be thoroughly inspected if a problem arises.

(9 people reported this problem)

Porsche 911 Vehicles With This Problem

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Average mileage: (–)
9 model years affected: 1990, 1991, 1992, 1993, more1994, 1995, 1996, 1997, 1998
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