P0446 Code, EVAP Vent valve - Chevrolet Forum - Chevy Enthusiasts Forums

P0446 Code, EVAP Vent valve


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Join Date: Apr 2009
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March 4th, 2010, 4:24 PM   #1  
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P0446 Code, EVAP Vent valve

So my check engine light came on and the dealer scanned and got the codes P0036 for the Second(downstream) oxygen sensor and P0446 for the EVAP system vent valve.

Wondering if anyone know the location of the vent valve. I'm guessing its on the canister.

Also looking around for parts I find different names, evap purge vent solenoid, evap canister purge valve. are these the same thing? Parts numbers that I've found are (Solenoid) AC Delco PT250, 2142147,
2141361, and (Valve) AC Delco 2142125

Thanks for any info!


Last edited by arminkropp; March 4th, 2010 at 4:55 PM.
 
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March 4th, 2010, 11:01 PM   #2  
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arminkropp  So my check engine light came on and the dealer scanned and got the codes P0036 for the Second(downstream) oxygen sensor and P0446 for the EVAP system vent valve.

Wondering if anyone know the location of the vent valve. I'm guessing its on the canister.

Also looking around for parts I find different names, evap purge vent solenoid, evap canister purge valve. are these the same thing? Parts numbers that I've found are (Solenoid) AC Delco PT250, 2142147,
2141361, and (Valve) AC Delco 2142125

Thanks for any info!
evap canister purge valve, evap purge vent solenoid are 2 differnt things. 1 is at the canister and the other is located under the hood. The P0446 code could be related forboth or thats what they would tell you at the dealer so they could do diag on it and charge 1hr labor. best bet its the valve witch is either attaced to the canister or right next to it since thats the one most common to wear out fist if you do do that might be a good idea to replace the canister to since youll be there and it probaly caused the problem in the fist place.


Last edited by Evil~Within; March 4th, 2010 at 11:05 PM.
 
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March 5th, 2010, 4:22 AM   #3  
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Thanks for the reply Evil. I'll order the parts and try to get to it sometime next week.

I guess the only thing thats really bugging me is that the van is 700 miles past warranty and things are going on it already.

 
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March 5th, 2010, 12:45 PM   #4  
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Gas cap would throw a code for a evep leake large or small not a valve code.

 
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March 6th, 2010, 1:08 PM   #5  
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I did check with the dealer, they read the codes and told me what needs replacing. The only crappy thing is here in Manitoba, Canada the rear oxygen sensor is $200CDN and in the US I can get it for $40 to $80 at Amazon. any huge difference in quality? http://www.amazon.com/gp/part-finder...0891&carId=002

The Walker direct fit is $40 and the Delphi on the last page is $65. Then the Bosch is $120

 
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March 6th, 2010, 1:45 PM   #6  
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cheap parts cheap quality

I say cheap parts cheap quality. but its up to you since all you will be paying for is a brand name. do what you think is right you could buy the cheap part and never see a problem or buy it and have to replace it in a few months never know tilll its done.

 
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March 7th, 2010, 12:10 PM   #7  
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Papa Bear  You have a 2007 Uplander? Is it not under warranty?....
Warranty is 3year/60000Km bumper to bumper and 5 year/100000 powertrain. I'm at 61287Km as of today. So i missed it by 1287Km.

 
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March 8th, 2010, 4:21 AM   #8  
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I did go to the dealer, That's where I got the scan done and they told me what needs replacing. Believe me I tried getting them to cover it!

 
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March 9th, 2010, 4:23 AM   #9  
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No the dealer didn't clear the codes. When I brought my van in it came up with P0036, P0054, P0138 and P2101.

I live in Morden, Manitoba. Where would I get a hold of a GM rep? Do you mean the salesman that sold me the vehicle?

 
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March 10th, 2010, 8:38 PM   #10  
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papa has a point. i have been in a daelership for a long time and have seen manny things. Its true if you complaine enough you will get it taken care of. I'm sure you know the saying the squeaky wheel gets the grease but it is posible for cars ( all makes and modles ) to though codes that have nothing to do with each other. Parts wear out thats a fact some times they go at the same time. Thats just bad luck It happens. for Example i once worked on a car that had a trany code incorect gear ratio 3rd , code for #4 misfire , purge valve insufishent flow and a catilist below theshold. so this costomer needed a trany a cat a Tune up and a puge vavle. so things just happen he bought a new car that week lol.

 
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