Daily driver help
Thread Starter
On The Tree
Joined: Mar 2006
Posts: 144
Likes: 0
Daily driver help I know its not ls1 powered but I need some help here.
2005 pontiac bonneville 3.8l v6
Car drives fine, nothing feels wrong but engine light keeps coming on, pulled code and it reads 0442 - Evaprative Emissions system leak detected(small leak)
I just need to know what this really means, and how to fix it
thanks
2005 pontiac bonneville 3.8l v6
Car drives fine, nothing feels wrong but engine light keeps coming on, pulled code and it reads 0442 - Evaprative Emissions system leak detected(small leak)
I just need to know what this really means, and how to fix it
thanks
the evap system contains all the fumes from your gas tank and fuel lines but let's the tank pressure equalize the outside air. with a car as new as yours it's probably the valve getting stuck, but check your hoses also like keliente mentioned. It's usually in the back, you should see a black plastic box with rubber hoses running from it to the tank. My camaro's is hidden in the quarter panel behind the fill neck, my mom's 2001 sirrus is above the tank, her's was throwing the code and turned out to be that valve
On The Tree
Joined: Dec 2005
Posts: 111
Likes: 0
Start off simple- check your gas cap. could be loose, could have a bad seal, if its one of those new quick connect types I wouldnt be suprised if the whole damn cap is bad already. Might not deff. be that but 90% of the times you see a small evap leak code on any car, its the gas cap.
TECH Senior Member
Joined: Dec 2001
Posts: 5,399
Likes: 3
From: Jacksonville, FL
Buddy of mine had P0442 on his Z, after replacing the cap code kept coming back - ended up bringing it to a shop that pressurized the EVAP system with smoke to find the leak. Fix was easy, finding the leak was the pain.
