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- - Fuel Cap Issues (https://www.hummerforums.com/forum/hummer-h3-17/fuel-cap-issues-40920/)

Jeje Ali

02-17-2019 08:28 PM

Fuel Cap Issues

I’m sure I’m not the only one that has the “tighten fuel cap” pop up. What’s the best way to fix it?

Hbrezzi

02-18-2019 01:50 PM

Quote:

Originally Posted by Jeje Ali (Post 358055)

I’m sure I’m not the only one that has the “tighten fuel cap” pop up. What’s the best way to fix it?

I would check the seal of the cap and make sure it clicks 3 times when tightening it.

My issue was while pumping gas and I solved it by changing the vent solenoid and the charcoal canister.

I also replaced the whole cap which was quite inexpensive.

ronk5865

02-27-2019 09:47 AM

Fuel cap issue

Quote:

Originally Posted by Jeje Ali (Post 358055)

I’m sure I’m not the only one that has the “tighten fuel cap” pop up. What’s the best way to fix it?

I found that it was the fuel pump outlet nipple on top of the tank had a pin hole leak, bad design that just lets dirt settle on this little baby.

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