I have a 1997 Challenger 1800 that I've had for 8 years. Just got it out of climate controlled storage, dropped in recharged battery, put on DSS, got the beep that all was good to fire-up and then Loud Clicking/knocking sounds coming from Main fuse-box in engine compartment. Removed the cover and had my son hit the start buttons. There is a black unit (distributor?) where the spark plug cables are and its knocking really loud. What's going on? Please help!!!!!