Car Problem Reports

Pontiac Sunbird PCV Vacuum Hose Under Upper Intake Plenum May Crack

Pontiac Sunbird Problem
5 Reports
Me Too

Model Years Affected: 1991, 1992, 1993, 1994

Engine Affected: 3.1L V6


The PCV vacuum hose under the upper intake plenum may become brittle and crack causing an engine vacuum leak.

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