Comment on P0442 – Evaporative emission (EVAP) system -small leak detected by Russell Unger

R

Russell Unger

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#1
I Have A 2003 Buick Park Ave An Have Been Getting P0442 Several Times.The Purge Valve Has Been Replaced Do Yoy Have Any Ideas On The Problem?

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grcauto

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May 29, 2014
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#2
You have a small leak. It could be anywhere in the system. The best way to find a small leak is to use nitrogen and soapy spray.