Check Engine Light Due to Gas Cap Issue on Chevrolet Impala

Illumination of the Check Engine Light can be caused by a loose or worn gas cap.

RepairPal Verified
Average mileage: 150,851 (100,000–181,000)
3 model years affected: 2004, 2005, 2010
12 people reported this problem
4 people shared problem details
have replaced the gas cap 3 x at different intervals so far.
1 person likes thisFlag inappropiate
check engine light came on. got a new gas cap..but check engine light came back on. car idles high when i hit 30mph and i have to keep stepping on the gas until it jolts and picks up speed..help
The gasket around inside cap had become hard and develop cracks allowing pressurize air to leak out causing the check engine light to turn on. the code P0442 was reported "small leak detected"
2004 Chevrolet Impala150,000
The gas cap was loose and wouldn't tighten, causing it to fail inspection.
Related Items:
i had a faulty gas cap, the check engine light came on, i replaced gas cap, but the check engin...
is the reason the check engine light is on because of the low collant level? or something else?...
Shakes extensively when accelerating between 25 & 50 mph, but also at other speeds. Sometimes i...
On a very rainy day, I got some gas from the Shell and 15 miles later, my check engine light st...
I have a check engine light on. The code indicates secondary air device. This prevents the remo...

Related Content