HI peacey i am a newby so hope this post is ok ,i have a 3.1 trooper and with not much effort you can put the cam belt light out your self.It is a small bulb in the back of the clock you take out off the socket its in at the moment and as i remember put it back in the socket next to it ,with out having alook cant quite remember as i did my light five years ago ,but bet on the isuzu owners forum you can find the answer .Hope this may help