2004 Yukon Denali Evap purge canister & valve solenoid

Locating & replacing the emission Evap sensors

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Replacing Vent Valve Solenoid & Purge Valve Solenoid (EVAP Valve) 2005 GMC Yukon
When you get a check engine light, your parts store can test it with a little electronic device - ask for the check engine light tester. They go by many names, but look for EVAP Valve or Vent Valve/solenoid & Purge Valve/solenoid. The one in the rear of the car, near the gas tank, is known as the "Vent Valve Solenoid Canister." The one in the engine compartment is called a " Purge Valve Solenoid." Replacing the one in the engine compartment did the trick. I'd start by replacing that one first then test it. Cost: $25.97 Vent Valve Canister (fuel tank one) $35.72 Purge Valve (engine compartment one) TOTAL: $61.69 GM Dealer quote: $281.00 I saved $219.31





P0449 Vent Valve Testing EVAP Systems
Get that power probe for less here on Amazon → http://www.amazon.com/gp/product/B00G4YUWMC/ref=as_li_qf_sp_asin_il_tl?ie=U TF8&camp=1789&creative=9325&creativeASIN=B00G4YUWMC&linkCode=as2&tag=httpww wyou00f-20&linkId=RAPWOQ5W3S3TQQP7 Please watch Mandy's video for a more accurate description of the working relationship of the computer, purge solenoid, pressure sensor, and vent valve in an evap system here → https://www.youtube.com/watch?v=IzfR84T6pBY P0449 Vent Valve Testing EVAP Systems





Automotive Evaporative Emissions - Part One
From www.autofixworld.com: Part One of a two-part video describes how onboard monitors test vehicle fuel containment systems for fuel vapor leaks. Three types are discussed: pressure test; vacuum test; and natural vacuum leak detection.





Chevy Owners, Having a Hard Time Refueling? EVAP Vent Valve Replacement
To all Chevy/GMC Silverado - Sierra, Avalanche - Yukon (Yukon XL) owners a quick and simple part that needs replacing if you are having a difficult time refueling your vehicle.




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