I went to jump start my wife's 98 buick regal. I checked the cables to insure they were on correctlly. When I turned the ignition, they were a loud bang the plastic cover over the plugs, (Cover shows type engine. 3800 V6 series 2) exploded into pices, the oil cap and neck that the cap goes into blew out, and caused fire on the wiring near the windshield. Any ideas?
