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I have a 2016 E-350 with a v-10. When the engine is running…

I have a 2016...

I have a 2016 E-350 with a v-10. When the engine is running and I remove the gas cap air is rushing out. It's kinda weird.

Mechanic's Assistant: Has the vehicle turned into a gas hog? And how does it start -- same as usual?

It starts and runs fine but I notice a loss in power. It's 24 ft motorhome.

Mechanic's Assistant: Are you fixing your E350 yourself? What have you tried so far?

I tried a new gas cap and thats it

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

The gas smell does come into the cab

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Answered in 6 minutes by:
6/29/2018
HDGENE
HDGENE, Ford Senior Master/Diesel/Trans
Category: Ford
Satisfied Customers: 6,646
Experience: 28 years Auto experience, Ford ,GM, Chrysler, Asian & European
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Hello, and thank you for using Just Answer! My name is***** me a few moments to review your question and Ill do my best to assist you.

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Hello, the evaporative emission cannister vent should be open at an idle, allowing the system to vent. If it is sticking on, it will build up pressure in the fuel tank system. Either there is a blocked vent on the tank which may be a custom fuel tank on an rv. So make sure there are no kinked hoses on the fuel tank if you can see the top of it for the venting of the fuel tank. If that looks ok. See if the there are any diagnostic trouble codes stored for the evaporative emissions system and run a evap system test ( all with a scan tool of course).

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Customer reply replied 1 month ago
There is no stored codes so I guess I'll have my mechanic check the evap system. Thanks!

You are welcome, if you need more help please let me know. If I was helpful, please use the 5 stars above to leave a positive rating.

HDGENE
HDGENE, Ford Senior Master/Diesel/Trans
Category: Ford
Satisfied Customers: 6,646
Experience: 28 years Auto experience, Ford ,GM, Chrysler, Asian & European
Verified
HDGENE and 87 other Ford Specialists are ready to help you
Ask your own question now

Thank you!

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Customer reply replied 1 month ago
I forgot to ask, is it safe to drive in it's condition

It should be but I wouldnt go further than I would have to without having it checked out further, Fuel vapor is flammable and if it builds up too much pressure it can cause another leak in the evap system

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Customer reply replied 1 month ago
Okay, Thanks!

You are welcome, thank you!

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