Engine Vacuum Leak Due to Cracked PCV Vacuum Hose on Chevrolet Cavalier

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

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Average mileage: (–)
Engine affected: 3.1L V6
5 model years affected: 1990, 1991, 1992, 1993, more1994
5 people reported this problem
0 people shared problem details
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