Intake Manifold and PCV Vacuum Lines/Hoses Can Leak Due to Age on Buick Regal
Problem overview
The upper intake manifold gasket and/or a PCV vacuum lines/hoses can develop vacuum leaks with age. This type of leak can result in a higher that normal or rough idle.
13 people reported this problem
3 commentsBuick Regal vehicles with this problem
Average mileage: 127,000 miles
(95,000 - 160,000)
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