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Trouble Code P0449 Vent Valve/Solenoid Circuit Malfunction

Perdidoguy

Member
Joined
Jan 1, 2016
Messages
19
Location
Perdido Key, FL
My XLR/V(s)
2007 Black XLR
My XLR has been throwing this code for a year. I have looked but can't find where the Vent Valve/Solenoid is located. I have looked everywhere but where it actually is. I searched the forums for P0449 but got no hits. Am I the only one who has had this problem???
 

Fireduck69

Seasoned Member
Joined
Mar 21, 2015
Messages
329
Location
NorthEast PA
My XLR/V(s)
2007 Black XLR-V
It’s under the rear passenger side behind the fuel tank, just above the exhaust pipes.Kind of in the way of reaching the fuel tank crossover tube. I think they can be found online for about $28 and are pretty easy to replace.
 

Perdidoguy

Member
Joined
Jan 1, 2016
Messages
19
Location
Perdido Key, FL
My XLR/V(s)
2007 Black XLR
Found and Replaced

Thanks Fireduck!!!!! Removed it and tested coil and found it to be open circuited. Applied 12VDC to it and nothing happened. New one on the way. If you are ever in Perdido, FL area I will treat you to a Bushwacker at the Florabama.
 

dhmcfadin

New Member
Joined
Oct 7, 2021
Messages
2
Location
San Antonio, Texas
My XLR/V(s)
2009 Cadillac XLR V Zephyr Blue
Hello, we have a 2009 XLR-V with this same error code. Can y'all provide any more specific information in regard to the location of this module and how to access it? I cannot find anything online other than this thread. Thank you for your help.
 

Fireduck69

Seasoned Member
Joined
Mar 21, 2015
Messages
329
Location
NorthEast PA
My XLR/V(s)
2007 Black XLR-V
Hello, we have a 2009 XLR-V with this same error code. Can y'all provide any more specific information in regard to the location of this module and how to access it? I cannot find anything online other than this thread. Thank you for your help.
It’s a purge valve for the fuel system. They tend to go bad if you drive on dirt roads. The valve is about 4” square black and is mounted on the inside frame rail in front of the transmission, behind the fuel tank, above the exhaust pipes. You probably have to loosed up the exhaust mounts to be able to push them aside a bit to access it.it has one electrical connector, a vacuum line and is clipped onto a mount on the frame rail.
 

Fireduck69

Seasoned Member
Joined
Mar 21, 2015
Messages
329
Location
NorthEast PA
My XLR/V(s)
2007 Black XLR-V
It’s a purge valve for the fuel system. They tend to go bad if you drive on dirt roads. The valve is about 4” square black and is mounted on the inside frame rail in front of the transmission, behind the fuel tank, above the exhaust pipes. You probably have to loosed up the exhaust mounts to be able to push them aside a bit to access it.it has one electrical connector, a vacuum line and is clipped onto a mount on the frame rail.

Vapor Canister Purge Solenoid - GM (12581282) about $27​

 

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