Cadillac
DeVille DTS
8

Rough Idle Due to EGR Valve Sticking Open on Cadillac DeVille DTS

Problem Description and Possible Solution

The EGR valve may stick open, causing a rough idle and/or the Check Engine Light to illuminate.

Problem Data
RepairPal Verified
Average mileage: 113,000 (65,000–161,000)
5 model years affected: 2001, 2002, 2003, 2004, more2005
8 people reported this problem