Problem Reports
Pontiac Sunbird
Report: PCV Vacuum Hose Under Upper Intake Plenum May Crack
Pontiac Sunbird Problem
5 Reports
Model Years Affected: 1991, 1992, 1993, 1994
Engine Affected: 3.1L V6
Verified
The PCV vacuum hose under the upper intake plenum may become brittle and crack causing an engine vacuum leak.
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