Had a hissing sound from the engine bay and thought it was the turbo on the way out. After looking on the forum for some ideals I checked the turbo out.

The inlet to the turbo was off, but resting against it. Most of the hissing went but not all.

Then followed all the turbo pipes till I found the hose to the inter cooler had the clips in the wrong place. One was OK but the other was in the centre of the hose. Moved this back into place and all is silent.

Thanks to posts on this forum it has saved a lot in garage bills.

must have been running rough if the tip was off as unmetered air would be getting in playing havoc with the mixture? glad you found your solutions by looking on the site though.

The car was hunting a little, so i kept it to 70 mph, no throttle. Around town drove fine.

No warning light or tale tale signs.

This site is great, so much info.