It is part of the fuel sending unit in the fuel tank. You have to drop the fuel tank to change the filter.
It's in the fuel tank
It is now located inside the fuel tank!
Drivers side frame between the doors.
how do i replace the fuel filter on a trailblazer 2007
The fuel filter on that 07 Trailblazer is part of the fuel pump module located inside the fuel tank and it is not serviceable by itself.
In the top of the fuel tank
There is none
Fuel pump or fuel filter possibly.
What happens is you have a new fuel filter in place.
It's inside the fuel tank and part of the fuel pump module. The fuel filter alone is not serviceable.
I have a 2002 Trailblazer and was told we do not have a fuel filter. You can verify this by looking at your maintenance manual or better yet (really!) call a Chevy Service department.
$300 from Autovalue. Fuel pump, pressure valve, filter and sending unit all one part.