Car Problem Reports

Chevrolet Monte Carlo Check Engine Light Due to Vacuum Leak in EGR Tube

Chevrolet Monte Carlo Problem
16 Reports
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Model Years Affected: 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006

Exhaust & Emissions Affected: 3.8L V6

Average Mileage: 112,250 mi (55,000 mi - 142,000 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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