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Date: Thu, 28 Nov 2002 19:56:54 -0000
From: "Toby Field" <>
Subject: Re: 9000 Aero cutting out

The exact same happened to me on my 9000. When I floored it, it would cut out briefly and then come back, etc. It was a faulty BPC valve. They cost 122.75 new but you can do a temporary fix in most cases or buy a second hand one. Most main dealers should give you 15% off with Saab service club. To do a temporary fix, take the hoses of the BPC valve and lubricate it with WD40. Toby Field (UK) '93 9000 CSE 2.3T Auto 158,000 Miles <> wrote in message news:lOnF9.79$ > I have a 97 9000 Aero with 50,000 miles. > > It has a larger dump valve. Apart from an ITG air filter, there are no other > engine mods. > > 1 month ago, it stopped accelerating into the red on the APC, and was > sluggish. > > I put the original dump valve back, and it cut out under HARD acceleration. > It then > carried on, giving the impression of a kangaroo hop at 75 mph. (very cool). > This happened > in every gear, and at various revs, but only happened when I "floored" it. > > I went to my local Saab main dealer, who put a brand new dump valve in, and > it > only cut out 1 in 5 times. They said I have overboost ? > > I put my old performance dump valve back, and it now whistles, before > cutting out > It still has overboost under hard acceleration, but its fine under normal > acceleration. > > The fuel is also down to 300 miles per tank. > > I have been in touch, but the main dealer have no idea, and want the car for > 2 days > to run tests. > > I have just lost my job, so any ideas would be appriciated, as I cannot > afford 60 + per hour > for Saab to diagnose this. > > Many thanks. > > Ian (UK) 97 Imola red 9000 Aero

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