Ok does anyone here know why my fuel gauge acting crazy.so fill up my gas tank for about 10 gal and the fuel came out of the gas tank.but before i refuel my fuel gauge indacate that its almost empty.now my gauge needle is not even on F level.why pls explain

 

im having the same issue. problem started after i changed the fuel pump for a walbro. it fills to about 3/4 or 12 gallons. before it would go to a little past full. ive tried different pumps, flipping the nozzle upside down, "just the tip" trick, and even pushing it in and holding up. Nothing seems to work, but i havent opened up the tank yet.

 

I have had this for awhile and I was below E and put 14.3 gallons in and sometimes it is at the F and others it shows like 3/4. So I really have no idea what my gas is really at. This happens all throughout the gauge. Not just when I fill up either.

 

How many gallons is our tank?

Sounds like the fuel sensor needs to be replaced

 

20 gallons

 

This fuel tank issue has been a known problem for about 10 years. I believe the problem stems from the "saddle" tank design of the Z. The fuel sometimes will not flow to the other side of the tank so when filling, the tank appears to be full when it is only half full. If you can find a gas station where the pumps are level, you don't have as much of a problem. Here is a drawing of the tank and I think you will see what I mean.

 

The most I've ever put in is 15. That's crazy that I still have another 4-5 gallons to go. You think someone would have said something when they were designing this.

 

I agree I also only put in 15 at the most. Although I don't run it down all the way perhaps 1/4th

What I can do is run it down to almost near empty and see how many gallons it takes to fill.

 

I get mine to E everytime so I don't end up mixing fuel and so I don't have old fuel in my tank.

 

https://my350z.com/forum/maintenance...d-to-fill.html

 

Its crazy how i filled up 10gals and its already full.so im thinking that everytime i see my gauge on E i know for sure i still have half tank of fuel.dts say ive got 291 miles to go.is that even close for a 10gal of fuel?thanks guys i really appreciate all ur feedback

 

And btw i only filled up 10 gal and it already spit on my rear fender and my gauge was near empty before i filled up