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Code 442

toddross

By toddross
June 18, 2009 in Ask A GM Technician

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toddross

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toddross

Posted June 18, 2009

Posted June 18, 2009

I have a 2003 gmc truck this code keeps coming up. PO 442 Can anyone help me to fix it?

superjim

Senior Enthusiast

superjim

Posted June 18, 2009

Posted June 18, 2009

I think that is a code meaning your evap system has a leak.

Check all the vacuum lines going to the evap canister and solenoid.

Senior Enthusiast

grampadirt

Posted June 18, 2009

Posted June 18, 2009

I think that is a code meaning your evap system has a leak.
Check all the vacuum lines going to the evap canister and solenoid.

Yep,just checked my codes program

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