1997 Buick regal gs
Engine size = 3.8
SES Light
work done prior = battery changed four months ago at shop
tech = jk
question = car has power but still won't start. When you turn the key
you get nothing

First be sure to check ALL fuses in all fuse blocks.
There is also a crank relay that may be bad.
Assuming the battery is good, You need to check for power at the purple
wire on the starter as someone tries to crank the engine, If it has power,
then the starter is bad. If no power, then you can have a neutral safety
switch problem, or look at the dash to see if there is a security or theft light
on. If so, you have a problem in the theft system.