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persistent evap code p0440 850 1995

posted by  KlausC on  Sun Sep 13 04:14 CST 2009
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last visit: Fri Oct 24 10:15 CST 2014
[RELATED]

P0440 = EVAP Emission Control System Malfunction, not EGR.

You are correct, it is very hard to find the leak. Usually it is a crack in one of the hard plastic fittings. On the S70, there is a 90 degree bend near the fuel filter that decays over time.

Somewhere between the gas tank, the charcoal cannister, and the intake manifold. Throwing parts at it will not help, unless you get lucky.

Klaus
--
I am not a mechanic, so can you trust what I type?






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