I have a 1990 Mustang GT and when i start the car the starter stays engaged. If i tap the silinod with something it will stop. This all started when i changed the silinod (with an oe part). I origanally thought i got a bad one so i exchanged it for a new one and that did nothing. Since then i have tried about 6 different silinods from just about everywhere and still the same result. I also tried drilling new holes with new scerws into the fender, since its the ground and that did nothing. So then i repaced both battery cables, the starter cable, the battery and even the starter (with a new silinod) and that also did nothing. I thought the only thing else it could posibly be is the ignition switch, so i finally replaced it, and of course my starter still keeps crankin until i smack the silinod or remove the negitive battery cable. I am out of ideas any help or sugestions would be great.:?: