× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network

P0446 Diagnostic Trouble Code Discussion for January 2007

EVAP Vent System Performance

Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P0446
Help Request Posted
2002 Chevrolet Venture LS 3.4L Surge VIN: 1GNDUO3E32
P0446: EVAP Vent System Performance. Hi guys, I've got one here thats kicking my butt. Customer brought vehicle in stating that it failed emmission testing. The first thing I noticed is that someone has removed the check engine light bulb. Vehicle has slight surge at idle. Scanned for codes (see ...
January 15, 2007
2002 Chevrolet Silverado 1500 5.3L MIL Lamp on VIN: 2GCEC19T22
P0446: EVAP Vent System Performance. thanks in advance for everyones help. this code is intermittant, when following the flow chart provided by alldata, it asks you to perform gm service bay test to vehicle first. i found under special tests in our genysis, what appears to be the same test,(is th...
January 24, 2007