2007 Tahoe EVAP code

[First-light]

So I have this truck it has almost 300k on it. Got an evap code engine light on the other day. Easy fix was the EVAP purge valve on the engine and new gas cap didn't fix it. Next step would be to change out the solenoid and charcoal canister. Car parts.com I can get them for about $300. It will be a pain in the ass to do but I'm no mechanic but could get through it. Thought is am I just chasing my tail and if I do the work and still get the code it would suck. I could bring it to service at the dealership but that is going to be expensive.   I'm original owner and use the truck mostly around town back and forth to work. Has a second motor at 200k. Runs great Any thoughts would be appreciated. 

Thanks

Burt

[Four Seasons]

What code # was thrown?  Lots of miles on the ole girl. My guess would be the canister or line and getting it smoked would show something. Anyone in your area just charge you to smoke it and send ya on your way to fix yourself?  Smaller shop maybe?

[Arcade Hunter]

Like four seasons mentioned above, these items are the most likely culprets.  But... Im sure you dont want to spend more than you have to on this issue.  Being that it is a NY vehicle, there is the possibility that the fill pipe or the top of the fuel pump rotted a hole through it also.

It would probably be best to smoke the system and check for leaks before buying any parts for it.  You may find a rot hole somewhere or a stuck open vent valve.  Very common on those GM's

[First-light]

Hey guys thanks. That is what I'm doing . Got an appointment at a local shop and they will do the smoke check on the system. Highly recommended place so I should be ok.