hi all, what do you think has caused this on my tdci intercooler im thinking its not holding the pressure and this is why aim struggling for performance iv also got a very high pitched squeal but thought that was maybe the manifold gasket as it only squeals once its got hot after around 5 or 10 mins , ive covered over 600 miles on a new turbo, the squeal is very hard to track down were its comming from