My 2004 Tahoe throws a P0443 code

[ueww40]

My 2004 Tahoe throws a P0443 code intermittently. I know it has something to do with the EVAP system. Can anybody be a little more specific and may have an idea what I should look for? Thanks

 

[Fless]

Most likely internal to the purge valve on the engine. If you don't have a way to test the electrical switching (test lights are cheap) like he does in the video below, you could just replace the purge valve. No guarantees without an actual diagnosis.

 

[Scottydoggs]

likely a bad purge solenoid, heres a vid of its location and removal. pretty easy job.

 

[Scottydoggs]

fless with the ninja post on me lol two thumbs up. its like we were reading each others minds lol

 

[OR VietVet]

On my 05, I had read so many posts here about these NBS rigs with evap problems and single parts replacement not working and money/parts thrown at the problem. So, I just replaced the entire evap system. Never a problem since and use GM parts.