vent valve code - Chevy Colorado & GMC Canyon
 
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post #1 of 9 (permalink) Old 09-20-2010, 05:20 PM Thread Starter
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vent valve code

Hi
My 2006 got the CEL code p0449 and p0455. Dealer says I need a new vent valve for fuel evap. system. Dealer wants $265 to replace, local garage wants $211.
I guess the part costs $175.
I read somewhere you can use the vent valve for a 2006 suburban in a 2006 silverado and the price is like $25. Supposedly you just need to swap out the hose.
Does anyone know if the same is true for a Colorado? Can I use the part from a 2006 Suburban?
Any answers are super appreciated.
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post #2 of 9 (permalink) Old 09-21-2010, 11:37 AM
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Re: vent valve code

Take the existing one off, clean it, exercise it, and reinstall. That fixed mine 6 months ago. The valve is attached to the charcoal canister which is located under the bed just in front of the spare tire. It is held in place with one bolt. Disconnect the two lines and one electrical plug. Remove the one bolt, and the assembly will almost fall out in your hands. You may want to drop the spare tire first for more room, but it will come out without dropping the tire.

2005 White 2wd Z71 WT
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post #3 of 9 (permalink) Old 09-22-2010, 02:51 PM Thread Starter
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Re: vent valve code

Thank you very much. I will give that a shot first.
What should I clean it with?
When you say excersize it, do you mean manually?
Thanks
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post #4 of 9 (permalink) Old 09-22-2010, 04:25 PM
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Re: vent valve code

Yes manually. or you can put 12 volts across the coil repeatedly. Just blow out the dirt. Take the cap off of the end I if I remember right there is a small foam filter in there. I could be wrong on the filter. Just clean it up and reinstall it.

2005 White 2wd Z71 WT
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post #5 of 9 (permalink) Old 09-23-2010, 08:45 PM
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Re: vent valve code

Quote:
Originally Posted by n9cv
Yes manually. or you can put 12 volts across the coil repeatedly. Just blow out the dirt. Take the cap off of the end I if I remember right there is a small foam filter in there. I could be wrong on the filter. Just clean it up and reinstall it.

That should fix the PO455 code? all i got on my truck.
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post #6 of 9 (permalink) Old 09-27-2010, 08:59 AM Thread Starter
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Re: vent valve code

Took off canister and cleaned out valve and all hoses. Still getting CEL code.
It looks like valve has a crack in the plastic, so I am assuming it is toast.

I read somewhere that a Hummer H2 valve is the same but much cheaper.
H2 valve doesn't come with hose so I would need to reuse old hose.
Colorado valve is $109 and H2 valve is $35.

Has anyone out there tried replacing vent valve with one from an H2?
Thanks
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post #7 of 9 (permalink) Old 09-27-2010, 07:39 PM
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Re: vent valve code

should work
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post #8 of 9 (permalink) Old 10-22-2010, 09:40 AM Thread Starter
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Re: vent valve code

The vent valve for an H2 Hummer does work on your Colorado! It is the same exact A/C Delco part but without a hose on it.
I bought one off Gmpartsdirect.com for 25$ or so.
Just had to have a mechanic put a new hose on it, that cost me like $30.
Total was $55 and it was really easy to replace, I just followed another thread on this website. The CEL is off.
Thanks for everyones help.
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post #9 of 9 (permalink) Old 12-25-2012, 04:48 PM
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Quote:
Originally Posted by danadrouin View Post
Took off canister and cleaned out valve and all hoses. Still getting CEL code.
It looks like valve has a crack in the plastic, so I am assuming it is toast.

I read somewhere that a Hummer H2 valve is the same but much cheaper.
H2 valve doesn't come with hose so I would need to reuse old hose.
Colorado valve is $109 and H2 valve is $35.

Has anyone out there tried replacing vent valve with one from an H2?
Thanks
yes did it and it works fine with the napa part, 299$ in canada and the difference is the hose, use a heatgun to get the old hose off the old part and use the heatgun to put it back on. this part will work, changed mine and cel did not come back, and code is gone. 58$ i paid, great tip form this site. rodniron
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