There is an inertia switch on some Ford motor company products, but I do not recall ever seeing one on any GMs'.
If there is 12 volt DC power to the fuel pump and it is not running, then it is bad.
Would also suggest replacing the filter along with the fuel pump.
If there is 12 volt DC power to the fuel pump and it is not running, then it is bad.
Would also suggest replacing the filter along with the fuel pump.