‘I’m concerned about a warranty notification from Nissan’

John Paul, AAA Northeast's Car Doctor, answers a question from a reader who received a notice about an issue with his vehicle's evaporative emission vapor vent tube.

–Shuji Kajiyama / AP Photo, File

Q. I received a warranty notification from Nissan North America about the evaporative emission vapor vent tube from the fuel tank to the evaporative emission canister. Is there anything I should look for that would give me a clue that this is happening to my vehicle? It goes on to say that the vehicle has software that may not be able to accurately pinpoint the issue. They are extending the warranty to 15 years or 150,000 miles. I don’t want to wait till it’s too late.

A. I believe the issue is the vent gets clogged with dirt or even spiderwebs. The problem is the system works or it doesn’t. The first indication of a problem is very slow filling of the fuel tank with constant pump shut offs. If this happens the vent is clogged or partially clogged.


John Paul is AAA Northeast’s Car Doctor. He has over 40 years of experience in the automotive business and is an ASE certified master technician. Email your car question to jpaul@aaanortheast.com.