so ive found the leak, and yep, it was a bolt ahaha. it was a bolt right next to the ac compressor bracket. would of been when i was going on a bolt removal frenzy trying to get that bracket out.
so now thats sorted the last problem is only cylinder 5 is misfiring. when the car is at cold start temp around 1000rpms it sounds mint as, like nothings wrong, once the revs drop to 500, sounds rough as, the car shakes heaps, and the check engine light flashes, and its misfiring cylinder 5.
so what do you reckon it could be? im thinking maybe a damaged spark plug or coil. the check engine light only comes on when it drops down in revs which is wierd.
any help would be appreciated, cheers.