What causes the tank vent hose to leak fluids when the tank is not full.

Asked by GuruK3B4Z Dec 19, 2019 at 09:00 PM about the 2010 Ford Mustang V6 Coupe RWD

Question type: Maintenance & Repair

Please help!

~got a Check Engine code: p0171
~told I need a new fuel pump assembly.
~I installed new fuel pump assembly.
~check engine light came back after less than 30 miles.
~new codes: p0171, p0174
~tried to pour fuel injector cleaner into gas tank (tank 1/4 full)
~fuel injector cleaner poured out of tank vent tube onto the ground.
~filled gas tank with gas. gas leaked out of tank vent tube onto the ground.
~What is causing my tank vent tube to leak everything onto the ground?

3 Answers

GuruK3B4Z answered 4 years ago

It's not coming out of a hole. It's coming out of the end of the vent hose. Could this be cause by too much tank pressure maybe?

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GuruGG6JP answered 4 years ago

My ford fusion is giving me the same issues and error codes. If you find a solution to this issue, please hit me up. My mechanic does not know what to recommend. He only wipes out the code electronically. @guruk3B4z

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