I'm getting that code and wondering what is the best way to find the leak to fix it
My car has 131000 miles.
My car has an automatic transmission.
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P0442 indicates that you have a small leak in the evaporative emission system. Many times this is caused by a loose or faulty fuel cap. Make sure that the cap is tight and in good condition, so that it seals completely.
If it is a cracked hose or faulty valve, a smoke test can be used to find the leak. Basically, it fills the system with a non-reactive smoke under a small amount of pressure. Any leaks in the system will be evident by smoke escaping through the location of the leak. If you would like this done for you, a certified technician, like one from YourMechanic, will be able to detect the leak for you and make the appropriate repair.
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