[nicktime]

P0449 Code and Solenoid Clarification

I'm hoping someone can help out a new member/visitor. I normally purchase service manuals for my own vehicle directly from Helm (2004 Impala SS, 2008 HHR SS, 2011 Equinox LT). However, I am helping a neighbor with a CEL and needed to find some clarification before I go any further.

I put my code reader on my neighbor's 2008 G6 GT (3.5L V6), and it displays a P0449 code. This is displayed as a bad vent solenoid ckt. Depending on which sites I look at, I see conflicting information regarding both a purge solenoid as well as a vent solenoid. I have seen info on the vent solenoid being by the Evaporative Canister by the gas tank. I have also seen this referenced as the purge solenoid, as well as the purge solenoid being located at the intake manifold of the engine.

When looking up parts, I see listings for both purge (AC Delco 214-1473/GM 12592015) and vent (AC Delco 214-2311 or 214-2237/GM 10382104, 13575701, 25932570) solenoids.

Any help on clarification would be greatly appreciated. Thanks!!

 

[nicktime]

A Little More.....

Thanks, greenman! I thought that was the case, but I realized that I wasn't quite as explanatory as I should have been.

I was planning on verifying the electrical wiring to the vent solenoid, and change the vent solenoid if needed. My question was really to confirm the location and part number of the vent solenoid.

Some of the online GM catalogs I have seen, including the drawing/diagram excerpts posted here, show a rectangular shape unit near the vapor canister. This is labeled by GM on some of the stuff I can find as a purge solenoid and not a vent solenoid. The drawings on sites such as GMpartsdirect.com only list a purge solenoid. Without any service manuals, I was hoping to glean some info from those, like yourself, that have replaced this.

Based on this, I have been able to locate two sets of part numbers (Rock Auto is an easy one to look at). My problem is that I just wanted to verify that the vent valve (round/cylindrical part) was what is mounted above/next to the gas tank before I tear apart anything.

Thanks!

 

[nicktime]

Thanks.....

I agree 100% with you, greenman.......the factory service manuals are indispensable and pay for themselves with just one use. Anybody that plans to hang onto a car and/or do any work themselves should spring for them.

Thanks for the offer, but I won't have any issues dropping the tank a bit to get to it. I just wanted to make sure I had parts in hand and didn't have to get anything mid-job.

Next decent day, I'll jump on this........it could be next week, it could be May 2015.......but hopefully next week