Gas Cap and Checking engine light is on?

2007 DODGE DURANGO
260,000 MILES • 3.7L • V6 • 2WD • AUTOMATIC
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CRAZYDOG72
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The display says Gas Cap and the Checking engine light is on. I've replaced the gas cap, evap and checked vacuum lines connected to it. I did find a hard plastic line near the tank, which goes to the evap and I reconnected it. Could it be about the tank?
Jul 18, 2024 at 3:01 AM
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STRAILER
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Yep, there is a leak in the EVAP system. The best way is to use a smoke machine mounted to the tank fill and check to see where the smoke is coming from. I have included the popular leak point in the images below. I would put the car in the air and use a flashlight to see if you can find the broken hose etc.

This guide can help:

https://www.2carpros.com/articles/evap-system-code-repair


Check out the images (below). Please let us know what happens.
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Jul 18, 2024 at 12:17 PM