Check Engine Light Due to Gas Cap Issue on Pontiac Torrent

Problem Description and Possible Solution

A Loose or worn gas cap may cause Check Engine Light to illuminate.

Problem Data
RepairPal Verified
Average mileage: 93,200 (50,000–130,000)
4 model years affected: 2006, 2007, 2008, 2009
28 people reported this problem
Viewing 1 - 9 of 9 comments
Same problem! Tired of it! How am I suppose to know when I have a REAL problem? lol
No matter what the mechanics do, the light will not stay off. It always point to the gas cap. I've gotten it replaced with a new one and the problem continues.
My Check Engine Light was going on, too, even though I'd securely tighten the gas cap after fueling. Even after I had the gas cap replaced, it'd occasionally go on. I just live with it.
Light comes all the time even after replacing the gas cap
The first time the engine light came on 20011 it was the Gas Cap.
The second time it was 2013 when the gas cap had to be replaced again.
The third time the engine light came on and the dealer performed a diagnostic test that displayed 5 errors they reset the errors. The fourth time which was two days later the engine light re-appeared and the dealer diagnose this time as the the EGR value system. It was repaired.
The fifth time the engine light reappeared and it was one of the two fans in front of the engine and was taken care. Last week Oct. 15 the engine light came on again and it was the gas cap. Now it is on again and there seems to be a leak after a smoke test. The car is in the shop.
Check engine light is on and won't go out.
My check engine light comes on every gas tank fuel fill at different levels. I changed my cap and it is still doing it
Worn gas cap had to replace
The gas cap wore out, and I replaced it for about $20.