Check engine light code P0449
August 8th, 2008, 5:41 PM
#1
CF Active Member
Thread Starter
Join Date: Aug 2006
Location:
Posts: 135
Likes: 0
Received 0 Likes
on
0 Posts
Check engine light code P0449
check engine light ison,autozone says code is P0449 this is whattheir ticket says:
The PCM has determined that a malfunction exists in the electrical circuit for the vent valve/solenoid in the evaporative emission control system.
Definition:
EVAP (Evaporative Emission System) purge/vent solenoid circuit condition
Explanation:
The solenoids and system wiring are monitored for opens or shorts
Probable Causes
1- Purge or vent solenoids defective
2- Check connevtor and wiring
3- Fuel saturated vapor canister
4- Failed EVAP vent solenoid
any info and help is appreciated.
The PCM has determined that a malfunction exists in the electrical circuit for the vent valve/solenoid in the evaporative emission control system.
Definition:
EVAP (Evaporative Emission System) purge/vent solenoid circuit condition
Explanation:
The solenoids and system wiring are monitored for opens or shorts
Probable Causes
1- Purge or vent solenoids defective
2- Check connevtor and wiring
3- Fuel saturated vapor canister
4- Failed EVAP vent solenoid
any info and help is appreciated.
August 14th, 2008, 5:23 PM
#3
CF Active Member
Thread Starter
Join Date: Aug 2006
Location:
Posts: 135
Likes: 0
Received 0 Likes
on
0 Posts
RE: Check engine light code P0449
Turned out to be the vent solenoid valve, 30 bucks at the dealer and i installed it in 10 minutes, thanks in2pro for the info [/align]
May 14th, 2010, 10:21 AM
#7
CF Beginner
Join Date: Apr 2010
Posts: 13
Likes: 0
Received 0 Likes
on
0 Posts
If you have a Tahoe, it will likely be attached ot the EVAP canister near your gas tank. I have attached a few images that should help you locate it:
EVAP Canister Vent Valve (2005 Chevy Tahoe)
Service Manual's description of EVAP System
Hope this helps!!
marine02xx
EVAP Canister Vent Valve (2005 Chevy Tahoe)
Service Manual's description of EVAP System
Hope this helps!!
marine02xx
Last edited by marine02xx@yahoo.com; June 7th, 2011 at 6:53 PM. Reason: Pics added
Trending Topics
May 24th, 2010, 6:55 PM
#9
Administrator
Welcome to the forum.
I doubt it since it is in the evap. emission loop. Could be dirty injectors, dirty throttle body, dirty idle air control. Try running a couple of bottles of Techron thru it.
I doubt it since it is in the evap. emission loop. Could be dirty injectors, dirty throttle body, dirty idle air control. Try running a couple of bottles of Techron thru it.
July 6th, 2010, 8:06 AM
#10
CF Beginner
Join Date: Jul 2010
Posts: 6
Likes: 0
Received 0 Likes
on
0 Posts
On Track - ?? P0449
Guys,
I have looked at the threads and wanted to ask for your help! I have a Chevy Avalanche 2007 with the P0449. Looks like it is either a gas cap ($35) at Pohanka Chevrolet (not likely), or the EVAP Canister Vent Valve ($42). Both in stock. They do not have a manual but highlighted Helm Inc. adn 1-800-782-4356 to get it.
anyway, I will inspect the gas cap. Should I replace it either way. In other words, can there be a problem that's not visible.
I am not a mechanic by any means. Is the EVAP Canister Vent Valve easy to replace?
thanks and nice forum.
I have looked at the threads and wanted to ask for your help! I have a Chevy Avalanche 2007 with the P0449. Looks like it is either a gas cap ($35) at Pohanka Chevrolet (not likely), or the EVAP Canister Vent Valve ($42). Both in stock. They do not have a manual but highlighted Helm Inc. adn 1-800-782-4356 to get it.
anyway, I will inspect the gas cap. Should I replace it either way. In other words, can there be a problem that's not visible.
I am not a mechanic by any means. Is the EVAP Canister Vent Valve easy to replace?
thanks and nice forum.