In this video I go into detail on why a p0445 large evap system leak sets and hoe the gas vapor system works and why it will set a p0455.

There are a number of different reasons that could cause a p0455 and the #1 reason being the evap vent valve and they are pretty easy to test. In this video, I will be testing the vent valve and the
evap purge valve with a power probe http://amzn.to/2FN2r70

Mini ScanTool https://amzn.to/2M8n2AS

I will active them with the power probe then blow into them to make sure they are sealing properly. And if they don't that will be the cause of your large EVAP leak. The vent valve is very common and I hope this video helps a few people save a little money on their auto repair bills. Thanks for watching the Fate Rate Mechanic.



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The Flat Rate Mechanic. 25 year ASE Master Automotive Technician and Advanced level ASE certified

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Disclaimer:
Due to factors beyond the control of The Flat Rate Mechanic, it cannot guarantee against unauthorized modifications of this information or improper use of this information. The Flat Rate Mechanic assumes no liability for property damage or injury incurred as a result of any of the information contained in this automotive repair video. The Flat Rate Mechanic recommends safe practices when working on cars or trucks with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this repair video. Due to factors beyond the control of The Flat Rate Mechanic, no information contained in this automotive repair video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained.