How hard is it to fixed it? Its a 02 blazer, do i need any speical tools?

 

Nut driver or flat head believe 15mil socket jack stands and jack then drop the tank and pull it out just did one last night in my 99 blazer

 

You need to be able to disconnect the fuel lines..so i think you need a quick disconnect tool.
biggest pain is dropping the tank...look for a how to.
There is a vent line on end of tank to that you need to get.
Also get another "ring retainer" (holds pump in tank) dont know proper name right now.

Not really a hard job just a p.i.t.a. plus mine always seems tp go when tank is full.

 

how do i disconnect the vent lines, cause i do not know how?!?