Car Problem Reports

Buick Lucerne Check Engine Light Due to Intake Manifold Vacuum Leaks

 
Buick Lucerne Problem
5 Reports
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Model Years Affected: 2006, 2007, 2008

Engines Affected: 3.8L V6, 4.6L V8

Average Mileage: 68,439 mi (46,878 mi - 90,000 mi)

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An intake manifold vacuum leak can develop from a variety of sources, often causing illumination of the Check Engine Light with codes P0171 & P0174 stored. Thorough diagnoses will be necessary to pinpoint the cause in order to make the correct repairs. A "smoke" machine is often used to isolate the cause of difficult to find vacuum leaks.