what does the code mean and where is it located and how much is the part
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2007 Chevrolet Trailblazer Question: code p0449
Answer #1Jim Taddei June 15, 2011, 16:19Master
Code P0449 on your 2007 Chevrolet Trailblazer refers to the EVAP vent solenoid circuit, electrical fault. This fault could be caused by a failed solenoid, a wiring issue, or a faulty PCM. The solenoid should be located on the body cross member above the rear of the fuel tank. I did not find any service bulletins addressing this issue. I would recommend diagnosing the system before simply replacing the vent solenoid.
mastertech6371 June 15, 2011, 16:59Master
they put the vent in a bad spot where road dirt and rust attack the unit. i have done several of these that just seize up.