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

replaced gas cap,changed oil,replace air filter

by in Tallapoosa, GA on September 11, 2011
2 answers 2 comments
ANSWER by on September 11, 2011
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 by on September 11, 2011
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.
COMMENT by on September 12, 2011
ANSWER by on September 12, 2011
yes, you better call for the help of a mechanic.

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