I have a 96 XJ6 that just turned over 99,000 milessometimes it has trouble starting, once it starts it runs fine. This also runs in cycles, it will start fine for a few weeks and then it starts to act up again. I think this is linked to the transmission because once in a while it will stall when I am stopped and then the transmission light will come on when I start it back up, then the car will only run in third gear until I restart it. Any help would be greatly appriciated.

Thanks,
Christopher Ward