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Dec 18, 2009 - Uploaded by jay eltatertoto
how to fix a buick century that wont crank. jay eltatertoto ... How to easily fix a Buick that will not crank and security light flashing - Duration: 6:06. ... My Car Wont Turn Over - How To Test The Starter / NSS / Ignition Switch - Duration: 5:21. ... 2001 BuickCentury Custom - Duration: 19:44. uxwbill 19,621 views.
sounds like you have a short in the horn wiring or a bad ground wire these grounds are mostly located under the engine compartment near the back wall whitch is called the fire wall or beside the fenders
you can take them off and have them tested or you can pull the plugs and there should be two plugs that will be really black follow those wires back to the coil that is bad. or you could also have someone crank it while you stick a screwdriver in the end of the wire on the plug and hold the screwdriver next to the engine or a good ground and there should be a bright blue spark but be careful and dont touch the car or it might tickle a little bit
the coils are one integrated block with 3 separate segments. the coil pack is mounted to the ignition module and can be unbolted from each other. one can test the coils from the underside of the coilpack with a dvom. having said that your car should still start if one paired coil fails, it would however miss on one or two cylinders. I would suggest to scan for codes, monitor live sensor data to see if you have a valid crank signal, check fuel pressure and spark voltage