Question about 2003 Pontiac Aztek

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I have a pontiac aztek 2003..i have a code of po446..what could it mean and how can i fix it..can someone please help me...

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  • Pontiac Master
  • 1,311 Answers

The first thing to check is to make sure the gas cap is tight. The other reason for this code to be set is a bad Evaporative System canister, purge valve or clogged vent tube.

Posted on Nov 10, 2010

  • gatafiera4 Nov 10, 2010

    thanks for responding..ok if i check the gas cap and the light stays on how would i know what els is wrong for sure...

  • Freddy Nov 22, 2010

    Unfortunately, there is no easy way to diagnose these problems. A qualified mechanic using a high tech scan tool would go thru a checklist to narrow down to the defective part.

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