car cranks but won't start on 1990 Buick Riviera

ignition module is good coil pack is good still no spark

Asked by for the 1990 Buick Riviera
You need to follow test procedures to see the coil pack is getting power and getting triggered to fire. Autozone have some popular workshop manuals for free on line once you register (for free) on their website There is also a company that independent auto repair shops buy their information from that the same information inexpensively to do it yourselfers. The information is year make and model specific repair procedures, service bulletins, component locations, wiring diagrams ect.... Alldata is very easy to navigate