replaced fuel level sender, needle still jumps

[JHZR2]

Hi,

I found that many places have the VDO fuel level sender unit for $60 or so. I purchased one last week, and put it in.

My gauge seems to be just as much off as it ever was. I have gone 290mi, and at startup, the needle sits at halfway on the gauge. OK, thats about right... But then I start driving and it jumps to halfway between 3/4 and 1/2 tank. I dont understand this.

Isnt the fuel sender replacement supposed to cure a jumpy gauge? Thats what I gathered from searching...

Sure seems odd that both would be identically 'defective'.

Is there an easy way to see if the rubber breathing hoses for the tank are clear?

Thanks,

JMH