When I fill the car with fuel the gauge will show a full tank but soon after it drops right down anyone had this hapen before?

 

Yes I did. Replaced the sender unit attached to the fuel pump housing. NO I DID NOT. I went to the junk yard and bought a fuel pump off a wreck and installed it instead. So I did/did not. Mazdatrix sells the sending unit but I decided on the wrecked car route. That way I have a spare pump.

Prior to doing the above I did the tests in the fsm to no avail and swapped in a pump/sender off one of my other cars to prove the sender was a gonner.

 

Ummm, Hailers, are you talking to yourself in that paragraph, or have you just had too much

 

lol...starion...mine does that too.. when i fill mine up and gas it to the floor it will return to half way.. and when i turnn it off it goes back to where its suppost to be...crazy..huh?