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07-06-2008, 01:04 AM
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#1 |
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Registered User
Join Date: Aug 2007
Location: West Hills, California
Posts: 679
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gas gauge reading
Is it just me or did anyone else notice that when a gas gauge reads between full and half a tank, gas seems to last longer? After half a tank and it goes to empty faster. Maybe my gauge is bad.
Last edited by Pont406; 07-06-2008 at 01:05 AM. |
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07-06-2008, 06:47 AM
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#2 |
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Chevy nut
Join Date: Jun 2007
Location: Springfield, Illinois
Posts: 2,266
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Re: gas gauge reading
No mine is the same way. Just about every vehicle I have owned is like that.
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84 Chevy Custom Deluxe 1/2 Ton Named Fade To Black II "Remember kids there is NO replacement for displacement!" |
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07-06-2008, 08:50 AM
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#3 |
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just can't cover up my redneck
Join Date: May 2004
Location: Columbus OH
Posts: 11,414
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Re: gas gauge reading
Yeah, the top "half" is usually bigger than the bottom "half".
It can be "adjusted" to some degree by swapping to a "universal" type sender. These will allow you to move the pivot point up a little bit, making the top, in effect, smaller. So if it is really that important to you, it can be done. |
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07-06-2008, 12:50 PM
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#4 |
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Active Member
 
Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
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Re: gas gauge reading
Aside from float and guage adjustments:
On most gas tanks, the gas tank float guage only goes up to a certain level. But, there's still extra space above the tank including the filler neck. When you fill the truck up past the last "full" mark and you start driving it, you're using that extra gas. So you have to burn all the gas on the space above full mark and filler neck before the float starts to move. Once it starts to move (as in my truck) it seems to go pretty fast. |
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07-06-2008, 01:02 PM
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#5 | |
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Moderator
Join Date: Jun 2008
Location: Modesto, CA
Posts: 5,775
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Re: gas gauge reading
Quote:
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07-06-2008, 01:15 PM
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#6 |
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Long Fleet Club
Join Date: Aug 2006
Location: Deer Park, TX
Posts: 5,666
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Re: gas gauge reading
I guess mine is broke (the gauge). Mine used to show way past full when I topped it off. When I drive it around and get the tank down it seams to show right even goes down to Empty. I thought when I got my new tank w/ sending unit that it would work but it is the same.
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07-06-2008, 02:43 PM
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#7 | |
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Active Member
Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
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Re: gas gauge reading
Quote:
This extra space, inluding the filler neck area is what you use before the float will start to move down again. On mine, I usually drive it for about 20 miles or more before the gauge will start to move... |
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