Car Problem Reports

Pontiac Bonneville Engine Runs Lean Due to Vacuum Leak in EGR Tube

Pontiac Bonneville Problem
10 Reports
Me Too

Model Years Affected: 1997, 1998, 1999, 2000, 2001, 2002, 2003

Average Mileage: 167,000 mi (164,000 mi - 170,000 mi)


The EGR tube may develop an engine vacuum leak causing the engine to run lean. The Check Engine Light may or may not illuminate.

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