Question about the gas needle

[Midknite_Bird]

hey what's up, well to tell you guys the truth this is my first F Body I ever owned..yes I used to have an import (car not important for I am ashamed jejeje) but anyways on my way to the gym tonight I took the freeway (big surprise huh? jeje) but before I got on the freeway, I filled up the gas tank.

here's my question...does your cars Gas Needle go down when you come off of the freeway and press the brake? if it does do you know why? i'm just curious to know if this is a normal happening or if my car was that "special" one that used to ride short little yellow bus to school...

[AllTheGoodNamesAreGone]

its the gas swishing around in your tank.. if you watch it it will slowly come back up.. it happens.. you will get used to it..

~Billy

[3.4 slow to go]

get yourself a 77 T/A. Stomp it & watch the gauge actually move down & stay down [img]graemlins/evilgrin.gif[/img]

[Camaro_SLP]

I've heard that the gas tanks are shaped like a V..so the readings are going to be very inaccurate at times due to stopping/increasing..and without a little 'low gas' light..you just need to know your car, and when to fill er' up [img]smile.gif[/img]

[95Batmobile]

My needle doesn't move until I've put about 100 miles on the tank. Then it drains like CRAZY and will move up and down when I hit the brakes or make a right hand turn...
You get used to it [img]smile.gif[/img] Just don't go by the gauge... go by the milage. You won't run out of gas that way... not like I know or anything :rolleyes:

[Dan M]

Dumb thing... I can easily imagine a way to make an accurate guage. I dunno how it's done now, but I bet I could make a fortune off my invention! [img]tongue.gif[/img]

Actually, I bet the Germans have an accurate gas guage already... maybe thats why BMW and MB cost so much. Hmm. [img]tongue.gif[/img]

[southalabama97]

<blockquote>quote:</font><hr> I've heard that the gas tanks are shaped like a V <hr></blockquote>
Is this the reason once it get below half a tank on the gauge it starts dropping like crazy? I can leave Mobile to go home with just under half a tank and its on the E when i get home. But like somebody said, watch the milage and know how far you can go withougt pushing the limits.

[95Batmobile]

Actually, I drove a 1997 Chevy Silverado and that gauge was very acurate. It didn't move at all when you hit the brakes and stuff. So it's not all GM cars... just ours ;)

[Infernal]

This should probably be in General Tech...

[Infernal]

<blockquote>quote:</font><hr>Originally posted by DrSquirts:
Dumb thing... I can easily imagine a way to make an accurate guage. I dunno how it's done now, but I bet I could make a fortune off my invention! [img]tongue.gif[/img]

Actually, I bet the Germans have an accurate gas guage already... maybe thats why BMW and MB cost so much. Hmm. [img]tongue.gif[/img] <hr></blockquote>

It wouldn't be that hard. I've put a small amount of thought into it myself. Basically if the gas tank has a measurable slope on both sides you can do a basic division of the imput signal to get a correct gauge reading. Unfortunately this means they'd have to add a small bit of circuitry to the gauge cluster or pipe the input through the PCM.

[Eddie B]

If you have a 95-97 3.8 I know they have a 14.5 gallon gas tank...when I had my 96 bird, I could get 310 miles on my tank, but 315 i was dry and stuck...so be careful...On the 99 I have know...I can get about 365 miles on my tank..it holds 16.8 gallons...if you have a pre 98, listen to these guys...once you hit about a 1/4 of a tank...you have about 2 gallons left and its time to hit your nearest fill station.
Ed

[SixBanger]

I know exactly what you're talking about and I can't stand it! Just gotta learn to live with it.

[Blizzard96]

Just one of the quirks of having a F-body that you'll get used to.

The gas gauge, the phantom noises, and the SES light.

[Everglades W68]

<blockquote>quote:</font><hr>Originally posted by 3.4 slow to go:
get yourself a 77 T/A. Stomp it & watch the gauge actually move down & stay down [img]graemlins/evilgrin.gif[/img] <hr></blockquote>

I used to do this with a 74 Bel Air. Stomp on the gas and get 4, maybe 5 MPG. Go lightly and get a whopping 12 MPG. Take a highway trip and the gas mileage soared up to 14 MPG.

But then again, it was a 400 CID, 4 barrel carb.