I have an 08 Buick Lucerne cxl. I replaced a really bad strut mount on Tuesday and on Thursday the died I have fuel and fuel pressure but no spark. I checked for power on each of the three ignition coils and had none. I suspect the crankshaft Position sensor. Fuse 3 under the hood is blown. I checked the area around the mount for frayed or crushed wires and found none. What else would cause the fuse to blow? Could the cmp be bad and causin* the fuse to blow as soon as the key is turned?