Question about 1999 Nissan Sentra

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Whenever i fill my tank,my gauge doesn't go all the way to full,it ends @ 3quarters & apparently i have to open airlock to release air inside the tank.Please tell me where it's situated!

Posted by Anonymous on

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I had the same problem. What you need to do is under the driver's side rear is a black gas canister unit that is supposed to filter gas in the neck. There is a check valve that you need to remove and replace or you can use WD-40 to unstick it. That valve is in the closed position so when you try to fill up the tank, the tank gets pressurized. I cleaned mine and it needs it again. The valve is around $60. I think, but could be wrong. Hope this helps,,,

Posted on Jan 13, 2014

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There is not an airlock that will release pressure in the tank so your gage will work properly. You will need to replace the fuel sending unit.

Posted on Apr 08, 2011

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Posted on Jan 02, 2017

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