Incorrect air flow from dash vents due to damaged engine vacuum hose on Pontiac Grand Prix

Air flow from the dash vents may be incorrect due to a damaged engine vacuum hose near the battery tray.
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Average mileage: 189,666 (90,000–281,000)
8 model years affected: 1990, 1991, 1992, 1993, more1994, 1997, 1998, 1999
10 people reported this problem
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problem details
Put a piece of heat shrink tubing on to reseal the broken vacuum hose. Worked like a carm and cost about $0.07.