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1999 Nissan Sentra Question: 1440 small evap leak



Visitor, 1.6L 4 Cylinder, Haverstraw, NY, July 14, 2010, 17:47

service engine soon light came on. took for reading code said small evap leak 1440. how do i repair?

2 Answers
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  • Answer #1

    July 14, 2010, 17:49

    Check the evaporative system for a small leak. This is best done with a smoke machine that fills the evap system with smoke, then look for the leak. These leaks can be very small so this is the easiest way. Also make sure the gas cap is sealing properly.
    Call around to some of these shops if you need help: http://repairpal.com/directory?address=10927&car_brand_names=Nissan

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  • Answer #2

    Visitor, October 12, 2010, 21:49

    check the rear evap lines to the canister. the metal lines rust and in return crack the hoses. some what easy fix.

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