gunged up s.p.i they are well known for it
but if you had to jump start it then one of 2 either battery or alternator the latter being the fave because of the need to rev
start it on a high tick over, turn on all the electrics headlamps ect then take the neg lead of the battery if it dies its the alternator if not then if it wont turn over its the battery if niether break out the gold card
