2008 Chevrolet Aveo Q&A

2008 Chevrolet Aveo Question: engine light on.got it checked said a small emistion leak.do i need a mechanic?

replaced gas cap,changed oil,replace air filter -
Answer 1
To find a leak in the fuel tank, fuel lines or charcoal canister a repair shop will use a "smoke machine" that generates an inert gas that locates the source of the small leak, or they may use a vacuum pump to test valves or even a scan tool to close valves and test them. Nothing you can do yourself. -
Comment 1
Pat when you say inert gas that is based on the tech using Nitrogen in the test procedure. Most techs do not use Nitrogen in testing with a smoke machine. When using a smoke machine with just shop air you are inviting a fire. -
Answer 2
yes, you better call for the help of a mechanic. -