Any GM mechanics?

snodogg

New member
OBD II code PO449 "Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction" -what does this mean in lehman's terminology?

I also read code PO455, I figured out this means bad gas cap.

vehicle is 05 Chev Silverado

Thanks in advance for any help!
 

sundown

New member
Evap solenoid vents the fuel tank. If it sticks shut you can't get fuel into the tank. If it sticks open as mine did,everything worked OK, just had the check engine light on. I replaced it with genuine GM part, about $125 I think. It took about an hour to replace.
 

arcticman

Member
My check engine light came on mechanic said it was a vent code he reset did not even get off the lot and it was back. He said not to worry about it, the next time I filled up light went off and has been off go figure.
 

snow_monkey

New member
Easy fix on the trailblazer there is a mounting bolt it shares with the dip stick, make sure you find all 2 or 3 fasteners that hold it down. Most likely comes with a new gasket also.
 

xcsp

Member
I just replaced the evap solenoid on my '06 Silverado a few months back, bought the exact AC/Delco replacement (has same exact #'s molded on the part as the old one) from Advanced Auto Parts for $23. It is listed as a replacement for the Suburban models.

Here's the replacement part (AC/Delco 214-2149):
http://shop.advanceautoparts.com/we...lco_15730271-P_759_R|GRPEMISAMS_1359970284___

It is listed for a Suburban, so if you need to order, tell them it's for a Sub, not a Silverado.

Yes, GM has a "new" replacement set-up for $100+, but why do that when the $23 part plus a section of 5/8" heater hose and 2 hose clamps will get it done?!

I also had found the cure from the gm-trucks.com site as well.

http://www.gm-trucks.com/forums/index.php?showtopic=83753&st=15

On Page 2, post#25 it shows pics of the original solenoid & tubing, as well as a picture of the new one, with the heater hose & clamps.

Another post with info:

***IMPORTANT INFORMATION YOU MUST READ*****

Ok everyone, listen up....If you have a 04 and newer silverado, with a failed evap vent solenoid, you have to read this info. Do not pay $100+ for this part(actually $150.00 at the dealer). The following part numbers associated with this part have been gm#19207763,19152349, and AC DELCO #'s 214-2082 costing over $100.00 for the modified part. This is for the modified part, with the relocation of the filterbox, and the added hose that seperates the two. No one at Gm will tell you this, but this same part, that was origionally on your silverado, is also used in the 2006 Suburban. It will be an identical replacement for what is ON YOUR TRUCK, and the cost is $24.04 AT THE DEALER. I know this because I own a 2006 silverado, and a 2006 suburban. Looked at the suburban when the part went bad on the silverado(from overfilling the tank)and bingo, same part. Ask a parts person at GM, and they will tell you otherwise, but they are lying to you. Bought the suburban part today part # 25932571 (GM #) and everything is identical, right down to the numbers stamped on the part itself. Took the part off my silverado, put the replacement on (which gm told me is not the right part), cleared the codes, and bingo no more light after 3 consecutive starts...... Why, is it that GM feels we need to pay the price for something they did wrong???? And moreso, lie to us, telling us the $150.00 part is our only choice to fix the problem. My truck went 40K miles with the origional part, and probably only went bad because of my own stupidity in overfilling the tank, whay would I not just want to spend $24.00 to put on the same part, that will probably go the rest of the life of the truck with no tank overfills????
 
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