Car Problem Reports

Chevrolet Impala Check Engine Light Due to Vacuum Leak in EGR Tube

Chevrolet Impala Problem
33 Reports
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Model Years Affected: 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008

Exhaust & Emissions Affected: 3.8L V6

Average Mileage: 116,558 mi (16,580 mi - 181,000 mi)


The exhaust gas recirculation (EGR) tube which connects the EGR valve to the intake manifold may develop an engine vacuum leak, causing the Check Engine Light to illuminate with code P0171 and/or P0174 stored.

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