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Date: Sun, 7 Apr 2002 22:26:51 +0100
From: "SimonJ" <menopsam.com>
Subject: Re: Loss of Turbo?


> Thanks Derek........ > No.......there is a definite drop in power. The boost needle doesn't seem to > move as far accross the yellow as it used to. I have also notice a > "whooshing" sound when I accelerate hard and the boost needle moves to the > yellow area.. This sound is like the noise of wind rushing in the window and > it appears to be coming from the engine bay or under the car. Can there be a > leak of turbo gasses past the turbo? I am not all that familiar with the > operation of a turbo. > Pete > > Sounds likely you have a boost leak, check for loose or split pipes between the turbo and the inlet, and check for a holed intercooler. I had the same problem, turns out the aluminium pipe that runs from the bottom of the intercooler, up to the throttle body had a hole in it where it had been rubbing against a jubilee clip. These leaks can be a nightmare to find though, as you cant get any pressure into the pipe while the car is stationary. Check also the small 'vacuum' pipes (these sometimes also carry boost pressure), to make sure none have come off or split. Once they reach a certain age, the rubber goes very brittle, and they tend to snap away from the connections.

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