Problem Reports » Check Engine Light Due to Vacuum Leak in EGR Tube

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Chevrolet Monte Carlo

 

Report: Check Engine Light Due to Vacuum Leak in EGR Tube

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

Exhaust & Emissions Affected: 3.8L V6

Average Mileage: 121,000 mi (99,000 mi - 142,000 mi)

Verified

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.