Question about 2000 GMC New Sierra 1500

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Po446 code on a 2000 gmc 50000 miles - 2000 GMC New Sierra 1500

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DTC P0446 Evaporative Emission (EVAP) Vent System Performance. possibly the evap vent valve failure.

Posted on Nov 11, 2010

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Posted on Jan 02, 2017

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PO446-Evap System Vent Control Circuit Malfunction

If the Evap Vent Valve or it's control circuit are bad, then
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Mar 04, 2013 | 2000 GMC New Sierra 1500

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Gm code po446


Generic Code --not GM

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What parts are replaced when doin a tuneup for a 2000 isuzu rodeo


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Transmission sometimes shifts hard into next gear.


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