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Date: Wed, 29 Apr 1998 20:30:17 +0100
From: "Tim Ricketts ,Wales, UK ." <rickettsnopsamil.com>
Subject: Re: 9000 Turbo problems


Daniel Green wrote: > > Please can anyone help me? My 9000 2 litre turbo has started to develop > performance problems that appear to be related to the turbo. Two weeks > ago under acceleration, the car suddenly seemed to stop accelerating > with the help of the turbo and the turbo pressure gauge seemed to stick > at 1/3 of the way up. After a bit of hard acceleration for a few miles > it suddenly seemed to free itself and suddenly the car accelerated > faster than ever before. I enjoyed two weeks of this new power and then > today it has suddenly started to stick at 1/3 again. Anybody any ideas > what may be causing it (the car is an auto and has done 105K). > Any help would be much appreciated. > Dan Green. Check the apc valve isn't blocked.To do this , remove the pipe connected to the "r" input of the apc valve(the thing with 3 pipes and an electrical connector),next remove the electrical connector then apply 12 volts to the valve (it should click),and blow down the "r" input.Air should pass thro' with volts applied and vice versa.If it doesn't then the valve may be blocked or defective.One of the pipe inputs to the valve has a very small orifice.E mail me privately if you need. Tim.

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