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Posted on Nov 28, 2008

I have a 2006 Chevy Silverado 1500 2WD and the engine light came on. I went to Auto Zone who did a quick check and found it to be a failed EVAP vent solenoid. I took it to the Chevy dealership who stated it was a solenoid 3.130 part # 19207763 and repaired it but said it was not under warrenty. I have approximately 41,000 miles on the truck. When I look in my owner's manual it does list the canister vent solenoid as an emission warrenty. Is the part they repaired the same thing?

  • 5 more comments 
  • Anonymous Dec 06, 2008

    Strange! Same thing is occuring to my 2006 1500 Silverado 4WD, and exact same mileage. Extended warranty company will not cover either. Costing me $250, diagnosis, parts and labor.

  • rdncktxn1967 Jan 16, 2009

    I have a 2006 silverado and have the same evap fault. I also have a thermastat isuue...

  • Anonymous Mar 13, 2009

    Same here on my 2006 silverado crew cab 2 wheel drive. The light came on @ 40,000 miles, auto zone ran the scan, evap sel. I refuse to give the dealer 250.00 plus dollars to replace something they must by now know is defective. Unfortunatly, auto zone does not have an available replacement part yet, so I am waiting till they do. Truck is at 55,000 now, no change in fuel mileage, and light is still on

  • Anonymous Apr 01, 2009

    Same - truck - same solenoid - cost $146 part & $135 labor.

    Screwed again by Chevy.

  • Anonymous Apr 04, 2009

    At 45000, check engine light came on for thermostat and then came on for evap solenoid. Thermostat cheap fix, dealer wants 320.00 for evap solenoid.

  • vdproberts Apr 28, 2009

    At about 40,000 miles my check engine light came on and after a diagnostic check i found the coolant temp was reading too low. I replaced the thermostat, coolant temp sensor and antifreeze. After about two weeke the light came on again for the Evap vent solenoid this seems to be a comon problem. Should I purchase the part or not ?

  • n_potter09 May 11, 2009

    I have a 2006 Chevy Silverado 5.3L. At 55,000 miles, a warning light came on telling me to tighten my fuel cap but I was certain that my cap was tight. Then after about 20 miles my engine light came on. I took my truck to the Chevy dealership where they told me that it was a bad Solenoid. They said they would repiar it for 350.00.

    I am trying to find out where it is on my truck and a better price so I can change it out my self.

    My truck has 57,700 miles on it now and it seems to run great but I want to fix the problem very soon. From what I hear, this solenoid is failing on a lot of trucks very early. Hopefully GM will find a solution to this weak device soon. I Like my truck

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  • Posted on Aug 11, 2009
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***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???? I say CLASS ACTION LAWSUIT FOR EVERYONE THAT HAS BEEN SCAMMED INTO PAYING THE RIDICULOUS PRICE that GM is trying to **** out of us.....Please pass this on to the world, and every forum you can...Get the word out....Let the parts people at GM know we are on to their BS, and they can't take advantage of us like they have.....

  • 1 more comment 
  • somesail Oct 20, 2010

    I also have an 06 Silverado. Went through the same senario s above at around 80K miles, but never replaced anything since I was told "not to worry about it--it is only a charcoal filter that dosn't rreally do anything" Now at 100K I can't pump gas into my tank and they are telling me its the evap canister or solenoid. I tried replacing and cleaning many of the lines and asociated components to no avail. It takes about 1/2 hour to fill the tank (2-3 seconds of fill pump on

  • lkersfan1 Feb 17, 2011

    Did you buy the same suburban part at the GM dealer or can I get it at any auto parts?

  • MikeRaphone Apr 29, 2011

    I know Odayflor's post is 2 yrs old, but let me tell you my experience, and BTW THANKS for the help. I own a 2006 GMC Sierra Long Bed Pickup with a 4.3 V6. When it hit 68,000 miles the check engine light came on. Tried simple things to do a reset to no avail. Took the truck in to a local GMC dealer for an oil change and asked if they'd check the code. They said it was a $399 repair. I decided to do the swap my self and save the shop labor costs. The price for part #19207763 (Canister Vent Valve) which is located near/next to the fuel tank is $158.00. I read the above comment about using part #25932571 which is $28. I went to the dealership had them pull both parts. The $28 part has a pigtail connection point and one inlet for the vent hose.. The new part has a pigtail connection and an inlet and outlet for the vent hose (2). The part #'s stamped on the parts are identical. I got underneath my truck and sure enough the original part on my truck is identical to the $28 part. I made the swap, (all of this was done with the battery disconnected), then re-connected the battery and drove the truck for 40 continuous miles to ensure all the codes were cleared and re-set by the computer. No more light, and it's passed the state inspection. So the bottom line is GM discovered that over time this $28 part tends to fail. The came up with a generic fix (in my opinion) and re-numbered their new part so all references will point to the $158 unit when the $28 works fine.

    Thank goodness for blogs like this where end users can help each other out.

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Unless you live in California, the emission warranty is only 36 months or 36,000 miles what ever comes first. The only other item that would be covered past that is the PCM and Converter

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I went to Jiffy Lube when my 2006 Chevy Silverado was around 40,000 miles and had my truck tested because the check engine light came on as well. All they guy told me was that my engine coolant was too cold with a strange look on his face. We both laughed and he entered in a code and turned it off. My truck is almost at 50,000 and I haven't had any problems with it yet.

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2006 Chevy Trailblazer LS. What fuse controls the EVAP Canister Vent Solenoid please?

there are like 1billion cars noW doing this.
  1. the gas cap was loose or bad !!!
  2. theN the driver did not know it takes 30 driving cycles to clear the CEL lamp. OOPS 30? OBD2 DOES THAT. PER SERVICE MANUAL RULES, IF YOU READ THEM.
  3. the fuse did not blow, or you'd have not asked where it is, I get that.!

99% of the time the cap was just loose or bad
my car the 1% time, the purge solenoid stuck
and my walmart silicon spray'd there (INSIDE IT) ended FAILURE for 50,000 more miles.
learn to buy AND USE a scan tool (borrow, rent ,buy)
tighten the cap again
scan the pCM see the cel lamp reasons./
push reset on the toll (CEL goes off if lucky and not 100 other DTC errors set)
and drive 3 times or more and the CEL stays off.


the other resets are(NO SCAN TOOL,. REALLY?)
1: PULL BATTERY LUG FOR 15MIN AND PUT BACK
OOPS RADIO GOES DEAD. dang
2: PULL ALL IOD FUSES. THE PCM MEMORY FUSE ONLY.
Ecm F29 IS IT(MEM) (PCM) 10AMPS
ALL DTCS NOW GONE, STORED. THE DATA FELL; INTO THE BIT BUCKET AS THEY SAY

IF ALL TESTS AND WILD GUESSING REPLACING ALL EVAP; VALVES. THEN COMES THE SMOKE MACHINE TESTS.
TO FIND THE LEAK
THIS IS AND EPA MANDATED MONITOR IN USA.
FOR SURE. THE 2 FUSES FOR BOTH EVAP VALVES ARE HERE.
evap-undefined-undefined-0_0.jpg
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What are the probable causes of DTC P0449?

P0449 - OBD-Codes.com

www.obd-codes.com/p0449
Detailed information on diagnosing and repairing a P0449 DTC code which refers ...P0449 Evaporative Emission Control System Vent Valve/Solenoid Circuit ... OBD-IITrouble Code Technical Description ... 2004 Chevrolet Tahoe 4.8L p0449

EVAP Code P0449 - YouTube

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Check engine light on

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These codes are for the evaporative emission system.The 455 is the vent solenoid.The 455 is a large leak in the evap.system.The vent solenoid I would replace because they go bad and will not work because they are under the vehicle in the rear of the truck.There is a bulletin for these and the vent valve is installed in another spot.The number for the bulletin is 02-06-04-037E.You should also look for a broken or loose hose or pipe that might have came off.Specially if you ran over something.If none found it could just be the vent solenoid stuck in the venting position.Good luck.
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2006 Alvalance service engine light is on steady.. went to Auto Zone and they check and says it's a EVAP vent solenoid..Need to know how much this solenoid cost or ballpark figure Also need to make sure I...

the dealer will have the part, real common, there also may be a service bulletin to add a filter onto the vent valve. as for a diagram, when you have the part in your hand, and you look at the back of the fuel tank, you'll figure it out.
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Trouble code po449 2006 chevy avalanche

CODE PO449 -EVAP VENT SYSTEM PERFORMANCE CONDITION.POSSIBLE CAUSES. VENT SOLENOID CONTROL CIRCUIT IS OPEN OR SHORTED TO GROUND OR.VENT SOLENOID CONTROL CIRCUIT IS SHORTED TO SYSTEM POWER B+.OR VENT SOLENOID POWER CIRCUIT IS OPEN TEST THE ENG 1 FUSE.OR VENT SOLENOID IS DAMAGE OR HAS FAILED.OR PCM HAS FAILED.
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CHECK THE LARGE BLACK CANNISTER AND CHECK THE HOSES CONNECTED TO IT. GOOD LUCK!
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HAVE A TROUBLESHOOTING MESSAGE PO446 ON A 2003 CHEVROLET SILVERADO 1500. CHECKED GAS CAP AND TIGHTNED NO CHANGE. AM LOOKING FOR LOCATION OF FOLLOWING PARTS PURGE OR VENT SOLENOID VAPOR CANISTER EVAP VENT...

DTC P0446 Evaporative Emission (EVAP) Vent System Performance

The vehicle control module (VCM) monitors the performance of the evaporative emission (EVAP) system by applying a predetermined level of vacuum to the EVAP system and monitors the vacuum decay rate. The VCM sets this diagnostic trouble code (DTC) if the vacuum decay rate is more than a predetermined value. The VCM monitors the amount of vacuum and the amount of pressure in the EVAP system by monitoring the fuel tank pressure sensor. For this DTC, the VCM turns ON both the EVAP purge valve and the EVAP vent valve when the Conditions for Running the DTC are met. This applies an engine vacuum to a closed EVAP system. The VCM turns OFF both the EVAP purge valve and the EVAP vent valve when the system reaches a correct amount of vacuum. The EVAP system should quickly RELEASE the vacuum in the EVAP system with the EVAP purge valve OFF and the EVAP vent valve OFF (open). This test indicates a blocked or restricted EVAP vent path if the EVAP system fails to release the vacuum quickly enough.

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