Rough Idle Due to EGR Valve Sticking Open on Cadillac DTS

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

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Average mileage: 93,545 (93,545–93,545)
3 model years affected: 2006, 2007, 2008
4 people reported this problem
1 person shared problem details
2007 Cadillac DTS93,545
The issue is when at traffic light in therror rear of the car there three knocks as if the car is trayin to stall.
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