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89 bronco I Fuel Tank


Broncopower33

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Location
Ramona, Ca
Vehicle Year
1990
Make / Model
Ford
Engine Size
4.0L
Transmission
Automatic
Live in the communist state of California. Recently did a smog check on the bronco and had a fuel leak on the vent on the gas tank. The vent is located next to the fuel pump, replaced the part and passed my smog.. However I’ve noticed since during this repair my fuel tank has back pressure and when I remove the gas cap there is quite a bit of air that comes out of the tank. What would cause? is the tank not venting properly now? I’ve never experienced this was curious if there is an issue.
 


sgtsandman

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Location
Aliquippa, PA
Vehicle Year
2011/2019
Make / Model
Ranger XLT/FX4
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4.0 SOHC/2.3 Ecoboost
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4WD
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Pre-2008 lift/Stock
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31X10.5R15/265/65R17
That is normal if the system is properly sealed. That means the vapor recovery system is working as it should and the gas cap is sealing as it should.
 

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