Question about 1990 Mazda Protege

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I have 1990 Mazda Protege Se. Gas fuel guage is showing empty but about 2-3 gallons gas is in tank. When I fuel it up to full, gas guage showing full again. What's the problem? How to fix?

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Clint Smock

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This is the way it is suppose to be. Mazda doesn't want you to run out of fuel. So they want you to think it is out of fuel when it has 2 gal left. Plus it is hard on fuel pumps to run low. The pump are cooled by the fuel. This way when you think you are out and need to fill it up you aren't completely out . The only way you can change this is to pull out the sending unit and bend the float arm down a little bit.

Posted on Feb 14, 2011

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Mical Caterina

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The extra fuel is "reserve" to get you to a fuel station... this is normal. If you were to run it completely out you will damage your fuel pump, fuel is used to cool the fuel pump. Soo... DON'T run it so low!

Posted on Feb 14, 2011

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