Check Engine Light Due to Gas Cap Issue on Oldsmobile Silhouette

Illumination of the Check Engine Light may be the result of a loose or worn gas cap.

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Average mileage: 134,520 (113,500–159,100)
9 model years affected: 1996, 1997, 1998, 1999, more2000, 2001, 2002, 2003, 2004
21 people reported this problem
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problem details
2002 Oldsmobile Silhouette 113,500 mi,
service engine soon light illuminated, took it to a mechanic and had the obd 2 read. came back with p0410 code= emission. was told that it will cost 600.00 dollars to fix. googled the problem and found a thread that said to change the gas cap, fill up the gas tank and wait a day or two and light should go off. so i changed the cap,filled up, a day later,bada bing light went out... thanks you google!!
2004 Oldsmobile Silhouette 155,000 mi,
Gas cap is loose and service engine light it on.
1996 Oldsmobile Silhouette 130,000 mi,
This happened more than once...we thought our gas cap was not on properly, or not tight enough. We ended up buying a new one.