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EGR control solenoild or valve may fail on Cadillac Eldorado

Problem Description and Possible Solution
The EGR system control solenoid or valve may fail causing the check engine (SES) light to illiminate. Engine pinging on acceleration may also be noted if the EGR system fails.
Problem Data
RepairPal Verified
Average mileage: (–)
Engine affected: 4.9L V8
4 model years affected: 1990, 1991, 1992, 1993
4 people reported this problem