It is basically the sending unit. Mine use to drop to 3/4 in less than 50 miles then would drop at a slower rate to 1/4 and then drop quick again to E. It would have 3 gallons reserve left in it when the light came on. I replaced the fuel pump and a new send unit is included. Now the gage drops fairly proportional all the way to E and when the light comes on there is only 2 gallons reserve fuel left in it.

Almost all fuel gages will vary when accelerating and decelerating. Inclines will also make them vary. A fuel gage is only accurate when the vehicle is on a level surface.

 

mine does the same thing... I'll leave the house and it will say 1/4 tank, by the time I reach work (6 miles away) the "check guage" light will be on...

I can actually physically watch it drop if I'm sitting at a redline that's on an incline... LOL

 

mine does the same thing ive ran out of gas before cause it said i had some left

 

All vehicles have crappy fuel gauges. I would swear that on some cars I've owned the fuel tank was vee shaped, cause the gauge would stay on full for the longest time, but once it hit half a tank, look out. Just know your vehicle and fill it when it gets close to the E. If you only put 16 gallons in, then you know about how much your reserve is when it says empty.

 

Yea my 02 FX4 dose the samething.

 

Mine was great until I had to replace the fuel pump.

 

My 93 did it a little not that bad though.

My 04 is fine it moves like a normal gauge should

 

My gas gauge sucks, I keep putting gas in but it always ends up back at E! ROFL

 

same here but i go by mi not what thew gauge says but like he said when the lights on 17-18gal to fill it

 

my 93 is horrible too..but i know it cost 80 bucks cdn to fill it up... and i dont have a low fuel light either. when i bought my truck, i took the greyhound to abbotsford bc then drove the truck back the same day.. and i filled up on my way outta town and you could literally watch the fuel needle go down for the first 1/4 tank, then its fine for the rest of the tank its weird. i got a 60 litre tank too.

my mom's 2000 taurus is bad too.. when just under a 1/4 tank the light will flicker on/off but you know you have fuel left..

we took dad's 93 F350 1 ton deisel 7.3L dually to alberta this past saturday and it didnt do it, was pretty good.. it also has dual tanks though... holy crap it sure liked the fuel tho... ouch had to like every 3-4 hours for fuel, even with 2 tanks..haha

 

Ha ha, good one!

 

i get the same thing, except its a '94.

 

Mine is fine.

I have never trusted a fuel guage once it gets down to 1/4 tank. I have always figured out how many miles gets me to a quarter tank and then fill up regardless of what the guage says.

also keep in mind the less fuel you have in the tank the more it can slosh around. Im not sure of the baffling in fuel tanks, but still.

 

mine sux i can when my truck is off and sits for a few mins it reads i have a 1/4 tank but when it starts up it goes to empty.