Question about 2003 Chevrolet Silverado 1500

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Where is the vent valve solenoid located on a 2003 chevy silverado

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

SOURCE: purge solenoid location

which vehicle are you actually looking for the purge solenoid on? you have 2 vehicles listed in your question. i'll answer both, lol

the locations are described as if you are looking at the engine from the front of the car with hood open.

on the blazer:

it is located on the left side of the intake manifold just under and behind the throttlebody. it is a canister looking device.

on the silverado:

it is located on the intake manifold on the left side in about the same spot as the blazer. providing the silverado has the 5.3 or 5.7 liter engine. if it also has the 4.3 then obviously it will be the same.

hope this helps!

Posted on Feb 17, 2009

  • 77 Answers

SOURCE: O.B.D. FUSE 2003 CHEVY 1500

Underhood fuse box (behind battery). may be labeled cigarette lighter or "aux pwr".

Posted on Apr 29, 2009

  • 1 Answer

SOURCE: I have a 2006 Chevy

***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.....

Posted on Aug 11, 2009

  • 1 Answer

SOURCE: HAVE A TROUBLESHOOTING MESSAGE PO446

Evaporative Emission (EVAP) how to find a leak without replacing canister on chevy silverado 1500

Posted on Jan 18, 2010

  • 1949 Answers

SOURCE: 2006 Chevy silverado 1500 I changed evap sensor

replace evap.. canester ...full of fuel from someone toping off tank

Posted on Nov 27, 2010

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1 Answer

On a 2003 Chevy Silverado 1500 HD 6.0l where is the vent valve solenoid located and how do access it?


On my 04 Silverado it is mounted just ahead of the spare tire, in between the frame rails.

Jan 18, 2017 | Cars & Trucks

1 Answer

Where is the Vapor Canister Vent Solenoid located on a 2003 Chevy Silverado 1500, 4.3L engine? And do you ave to remove the pick-up bed to access it, if it is on top of the tank?


No you don't have to remove the pick up bed to get at it. It's on the left frame rail along side of fuel tank !
Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle . Disconnect the evaporative emission (EVAP) canister vent electrical connector, if equipped. Disengage the 2 vent valve pipe clips securing the pipe to the underbody.
Remove the clips from the underbody and discard.
Disconnect the vent valve pipe at the EVAP canister. Remove and retain the EVAP canister vent valve bracket mounting bolt. Remove the complete EVAP canister vent valve assembly with bracket attached and discard.
Notice: Refer to Fastener Notice in the Preface section.
Video on youtube !

Dec 31, 2015 | Cars & Trucks

1 Answer

2003 Chevy Silverado 1500 5.3L evap emission control system vent solenoid replacement diagram


what yr an makes for a evap solenoid for a 2003 Silverado will enter change if any ?

Jan 15, 2014 | 2003 Chevrolet Silverado 1500

1 Answer

Po449 0n 2006 chevy cobalt


P0449 control vent valve/solenoid circuit malfunction, This code necessarilly deal with replacing the vent solenoid it about the circuit,the evap vent solenoid circuit may have rub through on the frame (located on the back of the fuel tank),it can also be the connector,the vent solenoid itself,or the connector

Mar 24, 2012 | 2005 Chevrolet Silverado

1 Answer

My 2003 chevy silverado 1500 4wd (5.3 Vortec) has a trouble code (po449 & 455) I know what that problem is but, I do not know where the locations of this problem would be. PO449 is a Evaporative...


The first thing I would check is the fuel cap. Your vehicle uses a closed vent system to control the fuel vapors in the tank and then vent the vapors to the engine intake system to burn. so you have a leak either your purge/ vent solenoid is stuck or open all the time not allowing the on board diagnostics to run the test or you may a bad fuel cap, and it is venting to the atmosphere allowing the gross leak. The purge/ vent valve is under the vehicle next to the charcoal canister.

Feb 16, 2011 | Chevrolet Silverado 1500 Cars & Trucks

1 Answer

2006 5.3ltr chevy silverado z71 p0455 andp0449


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.

Nov 30, 2009 | 2006 Chevrolet Silverado 1500 2WD

1 Answer

Codes PO 442, 449 and 455


Check all vacuum lines from the gas tank to the evaporative charcoal cannister by the gas tank and to the purge valve located at the engine. Check the electrical connector at the vent solenoid which should be located on the charcoal cannister and purge valve solenoid by the intake manifold.

Jun 10, 2009 | 2003 Chevrolet Silverado 1500

3 Answers

2003 Chevy Silverado 1500 Error Codes


P0135 is a bad 02 sensor
P0442 is a evap problem
P0449 is a vent solenoid

i would check the vent solenoid first its a 4ws fuse under the hood in the fuse box make sure you have power to it you should have power at all times the ground comes from the pcm i think if you fix this everything else will work they are all computer controled

Mar 23, 2009 | 2003 Chevrolet Silverado 1500

2 Answers

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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Dec 02, 2008 | 2000 Chevrolet Silverado 1500

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