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Discussion Starter · #1 ·
Hi, I need some help with my ford escort 1992 LX. The problem is I changed the speedometer from 80- 120. Next thing that happened was "the problem," it was the fuel it goes above "F" full and I do not know should I get another Fuel gauge or was there something that came off? Everything else of the instrument is working the Tach, Speedometer, & temperature, but not the fuel. And is there anything I can check that would solve this problem. Because now I do not know how the fuel if its empty or full?? Any help would help...thank you!
 

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Disconnect your positive battery terminal and wait 15 mins for the computer to reset and see If that works.If that doesnt you are gonna need a new fuel gauge.
 

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shit...when my gt is full gas, it always goes over the full mark. And, if i gun it or go down a hill, my gas guage goes up and down. I just go by the miles i have on trip odometer to tell me how much gas i have left. I mean, its not terribly inaccurate, but its just more precise to go by the trip odometer.
 

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yeah, mine's the same with 92gt5spd's.

dont worry about it much, unless it's off by 180 degrees.

plus, you might be a little overprecautious. because you just put something new and unfamiliar in your car, and it's natural to be worried and over estimate things of that nature.

(i.e. i just got new tires, and im forever checking the pressure to make sure they're not leaking..)

but, if it's really THAT off, then do what these other guys are suggesting..
 

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Discussion Starter · #6 ·
Thanks everyone!!! I'll surely try out all these possibilities. Yeah, its uncool because the thing is off by 90 degrees from the half point. Thanks for the help again. Fellow Escort Drivers!
 

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It's normal to go over the full mark.
You can pull out the gauge and re-zero the needle.
And fuel sending units are inherently inaccurate anyways. By poor design.
 

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The way it works is actually quite ghetto. A little buoyant "bob" sits at the top of the tank and it drops from the top, when theta=90, to the bottom, when theta=0. Because of the width of the buoy, the resistor sends out a full signal anywhere when the tank is full to when the fuel level is equal to full minus the width of the buoy.

But instead of having me describe it, I suggest you go here instead.

http://auto.howstuffworks.com/fuel-gauge.htm
 

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my gauge blows too. i ran out of gas the other day because i thought i had more gas then i did. when i turn the car on it goes to more than full and then goes down but by the time it goes down to where its supposed to be i'm already where i have to go. anyway i just go by trip meter.
 
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