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CEL Code P144B
Posted 20 October 2018 - 03:08 PM
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Posted 24 October 2018 - 11:11 AM
Thanks C-MaxA2, but I had gone over that post several times, and it never actually gave a conclusion. So after much more time on the internet I found this document. http://www.fordservi...DSM1700_HEV.pdf It is a Ford document explaining how the EVAP system works in our Hybrid cars. I found a section that lists P144B as a fresh air line blockage.
In the rear of the car there is a cover in between the gas tank and the muffler. This hides the pump, an air filter and the fresh air line for the leak check system. On the passenger side there is a line that goes out and disappears up past the charcoal canister. This is the fresh air line. It should pass air easily. If not, a spider has probably built a nest at the entrance which you cannot get to. Blow some compressed air through the line and it should get rid of the blockage. Reset the check engine light and you should be back in business.
I hope this helps some one out in the future.
- JAZ and Bill-N like this
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