I have a 93 brougham that will not start. I replaced the rotor and cap and because the caps was bad. The car ran great for a week and now has the same symptom. Won't start and no spark. I don't have a spark from the ignition coil. Does this mean the the coil is bad or possibly the ignition module. I measure 12v output from the coil with just the ignition in start. When I crank it the voltage dropped to 9.6. I'm not a good car mechanic so any help would be appreciated.