how does your fuel gauge read?

[K15 Blazer]

because, mine, when full is WAY right and as soon as it touches the coloration for E it will stall out and die on a decline...
is my gauge starting to go screwy after 20 years or do all GMTs read like this?...

 

[98slv]

I've never ran either of my trucks that low, that will kill a fuel pump. May sound crazy but the fuel (gasoline,) is what keeps the electric fuel pump cool. Run it down pass 1/4 or E to much and you start burning up pumps.


But to answer your question, I imagine all 400's are like this. Newer vehicles typically trick the guage to saying they are empty before they actually are.

 

[boy&hisdogs]

Mine goes way far to the right of full, at least two needle widths. Then it drops down to half within a couple days. I can drive for a week between half and quarter. That last quarter usually lasts a while too, I've never run out of gas before. I have on a dirtbike, but it had a faulty carb and no gauges what so ever. My brother had to drive my truck to bring me gas. My buddy ran out of gas less than a mile from the gas station, he has a '99 (obs) Suburban 2500 with a 454. His fuel gauge is also inaccurate.

My fuel gauge also read a quarter or more low if I parked with the truck facing uphill.

 

[Kyle97GMC]

When full and past the F mine will last a while. Once it hits the F it starts to go down by the minute it seems hahaha. I have run out of gas once and it was as soon as the needle hit the orange and I thought it meant I had another gallon or so to get to the gas station. I'll never let that happen again and I just know how many miles I can usually go on a tank and go off that

 

[great white]

Mine reads accurately. At least as accurately as it is capable of.

Top of the filler reads full.

1/2 tank takes nearly exactly 1/2 capacity to full.

But I've had mine apart and done some fine tuning adjustments to it.

 

[K15 Blazer]

yeah im going to adjust mine when i change the needle color to red from that ugly yellow
i try to keep it full at all times.... in case of a disaster where i need to evacuate...

 

[twomanymontes]

Mine is screwy. I had a 1/4 tank of gas when I replaced the fuel pump and sending unit. After the swap, it was on E. I took the bed off to change it, so I didn't loose that much gas. I fill up and it goes just past F, I can drive over a hundred miles before it starts to drop below F. I can maybe get another 100 between F and 1/2. Then it drops almost like a rock to E. Someday I will fix it. But for now I will leave it be.

 

[Ruger_556]

I've run it down past E and it kept running so who knows...

 

[johnny_buchanan]

Mine is pretty much the same than with several of you. When full, it will go over and beyond F and I guess it will be empty when reaching E - this I haven't tried; I was told way back that in American vehicles and especially in GM products E means empty and below last quarter will kill pumps. So, I always try to fill Red Dust and Caddy up as soon as I'm down to that last quarter.

This indeed seems different in Euros where warning light easily means a range of 60 or more miles, but I also try to fill up my Euros very soon after the student light appears.

-J


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[great white]

I fill between 1/2and 1/4 tank.

Aerated diesel fuel and a stanadyne DB4 rotary injector pump DO NOT mix well.....