2006 Suburban 2500 P0449 Code

jaredaggie · December 14, 2007

I have a 2006 Chevrolet Suburban 2500 4x4 with 60K miles. I have a P0449 code that I am not sure how to get rid of. I have read this and other forums but I'm having trouble locating my EVAP can or purge valve. I've read on other forums that it is an electrical problem and I've seen that most are able to fix it relatively easily by replacing a few cheap parts.

I am not sure if this impacts my mileage, but with this tank every little bit helps, plus the check engine light being on really bugs me.

Also a lot of the forums I've read say to get a repair manual. Anybody have any recommendations for which one and where to get it? I would love to have one of them, just wanted some advice on the best one.

Thanks,

Jared

jaredaggie · December 16, 2007

Well, cool... I got it fixed, I think. I replaced the EVAP vent solenoid and the purge valve. Both took 3 minutes each and cost 50 bucks total. So far no new CEL.

ThorsHD · December 17, 2007

where is it located?

jaredaggie · December 17, 2007

where is it located?

Howdy Thors, The vent solenoid is located behind the spare tire next to a good sized plastic box. Mine was dirty and dust went everywhere when I pulled it out. It is cylindrical in shape maybe three inches high. It has a black flexible hose and one electrical plug on it. See attached pics.

The purge valve though is up under the plastic housing on top of the engine. It has one small bolt that has to be removed, and again one wire. It is very readily accessible and can be replaced in less than five minutes. From what I have read for the P0449 this is the more likely problem, but since my evap vent was so dirty I'm glad they were both changed. See the attached pic. It's small and oddly shaped, but really is easy to replace.

Let me know if these aren't clear enough and I can email them too you.

Jared

barmann88 · December 26, 2007

Did this work for your? I have the same code, and trying to figure out what i need to do, also do you have any part numbers?

notme6w · December 27, 2007

My 2005 Colorado has a P0449 code and dealer said problem is faulty evap vent solenoid; part # may be 10386359 but not sure; next question is "where is the solenoid located and is this the part # correct" ??

GMTRUCKTECH · December 27, 2007

I must replace a evap solenoid every day I work piece of crap! In the general's defense I work on alot of fleet vecs that work in dusty conditions. Still crap!

Popeye07 · December 27, 2007

I have a 2005 Silverado 1500 5.3L also giving the p0449 code. Is the vent valve the most likely problem? Where is it on this vehicle? The dealer wanted $2-400 for the repair....yikes! I'd like to do it myself if possible.

Thanks,

Steve

jaredaggie · December 30, 2007

I wish i knew where they were on your vehicles, but yea i'd say if thats the code your getting that it's probably the problem. Mine is still working great. It really is a poor design. I would just call the dealership and see if they'll tell you where its located. I may have a trick, when I went to buy the part from the GM house, they pulled up a sort of map of my vehicle... and on there it had exactly where it was located. Try that and see if they will show you if you buy the part from them. I am surprised there aren't more people on here who are able to tell you where its located. I paid 20 bucks for a Chilton's online manual, and it was crap, didn't have anything useful to help with it. Keep me posted if ya'll get it fixed.

Popeye07 · December 30, 2007

I wish i knew where they were on your vehicles, but yea i'd say if thats the code your getting that it's probably the problem. Mine is still working great. It really is a poor design. I would just call the dealership and see if they'll tell you where its located. I may have a trick, when I went to buy the part from the GM house, they pulled up a sort of map of my vehicle... and on there it had exactly where it was located. Try that and see if they will show you if you buy the part from them. I am surprised there aren't more people on here who are able to tell you where its located. I paid 20 bucks for a Chilton's online manual, and it was crap, didn't have anything useful to help with it. Keep me posted if ya'll get it fixed.

Jared,

An update: I found the vent valve and solenoid exactly where yours is. Your pics made it a snap in identifying the right part. Off to the dealer tomorrow. Will keep you posted.

Many thanks,

Steve

RickCos · December 31, 2007

I was getting Code 0496 om my 2004 Avalanche and it was an evap issue as descibed above. Replaced both parts as noted above and problem is gone.

barmann88 · January 2, 2008

can someone post part#'s and how much, cause i have the extended warranty but i have to pay 100 bucks for the co pay thing. So im just trying to see which will be easier.

vail2073 · June 11, 2008

Hello everyone, I just wanted to add one thing from my experience.... I have a 2006 silverado 1500 and the items were in a similar place to the ones mentioned above... the one under the plastic covering of the engine is up front and easily removed with one bolt... i used an 8mm socket and it came out simple. The other piece is next to a plastic box as mentioned before only, that it wasn't next to the spare tire... it was about 1-2 feet up from the driver side rear wheel. Its right up against the frame. Pretty easy to remove also. I'd suggest using a jack to lift the truck a bit so you can get a good eye on it. If you have nerf bars, your going to need to lift it a bit. 2-3 inches should be enough to get a hand on it and maneuver around a bit. Hope this helped anyone else that needed help finding this crap pieces which are now mandatory on cars/trucks. Good luck everyone.

vail2073 · June 12, 2008

i replaced the parts as mentioned above... I got both parts for about $130. I replaced them myself in about 5-10 minutes total. I own a odb ii reader and recent the codes myself.... we'll see if they come back on. Hopefully not. I actually paid about $40-80 less than I would have paid normally for parts... the lady at the counter was in a good mood I guess. They would have probably charged me about $100-300 just for labor on top of parts...

CERDAHUALA89 · November 24, 2008

can someone post part#'s and how much, cause i have the extended warranty but i have to pay 100 bucks for the co pay thing. So im just trying to see which will be easier.

hey i founf the one in the engine easily but not the other one i have a silverado 1500 too u think you could explin a little more sorry im a newbie