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Eric
Eric, Automotive Repair Shop Manager
Category: Chevy
Satisfied Customers: 31640
Experience:  20+ yrs. experience as repair shop manager and technician.
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Where is the EVAP canister and vent solenoid valve on a 2004 silverado

Customer Question

Where is the EVAP canister and vent solenoid valve on a 2004 silverado? How do I test and replace?
Submitted: 9 years ago.
Category: Chevy
Expert:  Eric replied 9 years ago.

Hi,

Just need to know the engine size to get you exact location

Expert:  Eric replied 9 years ago.

Hi,

Below are diagrams with locations and highlighted for you:

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To test for leaks, a smoke machine is required. For other tests, it would help to know what DTC(diagnostic trouble code) numbers your vehicle has set, as diagnostic troubleshooting procedure can vary greatly.

Eric and 3 other Chevy Specialists are ready to help you
Customer: replied 9 years ago.
Reply to eric's Post: 5.3L
Expert:  Eric replied 9 years ago.

Hi,

Locations are shown on previous post for 5.3L . Your information on engine size showed up right after I asked.

As far as testing, to test for leaks a smoke machine is required. for other tests, i would need to know what trouble codes you are getting so that I can provide you with appropriate test procedure

Customer: replied 9 years ago.
Reply to eric's Post: P0449
Customer: replied 9 years ago.
Reply to eric's Post: P0449
Expert:  Eric replied 9 years ago.

Hi,

In order to perform the following tests, a you be required to have a test light, a DVOM(digital voltmeter), and most improtantly a Diagnostic Scanner capable of live data feed and command functions(not a code reader). You also need a very good working knowledge of electronics(backprobing at wrong location can fry a component, including the PCM and dramatically increase cost of repair)

troubleshooting procedure:

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Customer: replied 9 years ago.
P0449. Am I waiting or shuld I press "Accept"
Expert:  Eric replied 9 years ago.

Hi,

All testing information for P0449 is in the previous post. Reposted below:

Hi,

In order to perform the following tests, a you be required to have a test light, a DVOM(digital voltmeter), and most improtantly a Diagnostic Scanner capable of live data feed and command functions(not a code reader). You also need a very good working knowledge of electronics(backprobing at wrong location can fry a component, including the PCM and dramatically increase cost of repair)

troubleshooting procedure:

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