Hey, names brad... 1st post ever
i have an EF falcon... just recently got it.... love it

well i am having some trouble with the fuel gauge... it keeps going up and down when im driving the car...at 1st i thought it could have been from bumps and corners but it wasnt.. and just yesterday i turned the car off with quarter of a tank full on the gauge and then when i went to drive it an hour later it said that there was no fuel at all....then while driving it too the servo it went up slightly then went straight back down to no fuel....

any help would be greatly appreciated

Sounds like a dodgey sender unit, or possibly a wire shorting between the sender and cluster, or possibbly even the cluster.