Date: Fri, 16 Apr 2004 13:21:07 +0100 From: "Anthony Cooke" <ant7t5nospamali.co.uk> Subject: Re: APC problem, Saab 9000CS lpt Bucking under boost
Thanks Keith, that is exactly the kind of advise I was after. Pipes and handpumps it is. I'm not adverse to spending money but I didn't want to have to replace the whole lot.I'll see if I can diagnose it using your method. Anthony "KeithG" <noonenospamay.com> wrote in message news:5JWdnWX3Nqsc9-PdRVn-hQnospamopenwest.com... > In your case, if the DI was changed and it still runs on 3 then 4 cyl > upon startup, it may be a head gasket starting to go. My 900 did that > before I replaced the head gasket. Does the coolant level drop slowly > over time? > > As for the original post, If the car accelerates very hard, it may be > the sticking wastegate. Mine was an lpt, and it just feels like a 3l v6 > or so. It does not feel like 'Wow, this thing is fast', it feels like > 'This thing is adequate, no more'. > > To sets the theory, you'll need some 1/4" hose and a hand pump (bike > tire pump, soccer ball pump). disconnect the existing hose from the > wastegate actuator and hook the new hose there. If you can suck on the > hose and it is free, no resistance, the actuator is bad and must be > replaced. Now, pressurize it with the pump. If it moves, it is probably > fine. If not, remove the actuator arm from the wastegate arm and see if > it will move now, under pressure. If so, the wastegate itself is stuck > and needs to be freed? My bets are on the actuator. > > Good luck, > > KeithG > > Andy wrote: > > > Hi, > > > > I have a 1995 LPT 2.0 CS, and this does exactly the same thing. Except it > > does not do it all the time. More recently I have found that it starts on 3 > > cylinders only, then after a period of a few seconds to 1 minute, it starts > > running normally. I am suspecting the 2 faults are connected, and are due > > to some grounding or connection problem. > > > > I have been told the DI unit is the likely culprit, but it has made no > > difference to my Saab when it was changed. > > > > But if you find a solution, please be sure to let us know. > > > > Best Regards and Luck. > > > > Andrew > > > > "Anthony Cooke" <ant7t5nospamali.co.uk> wrote in message > > news:407d1dae$1_1nospamntp-2.news.uk.tiscali.com... > > > >>Hello, I have just bought a 1996 9000 CS eco. It's my first Saab and I > > > > think > > > >>it's great. > >> > >>It is running fine under normal conditions but when I go to overtake ;) > > > > the > > > >>fuel cuts out as soon as the turbo kicks in. Someone has suggested that an > >>APC Solenoid or control box has gone bad and is protecting the engine when > >>it doesn't need to. The problem starts at around 3500 revs but only if I'm > >>heavy footed. > >> > >>Could anyone tell me a little more about these gadgets and how to test > > > > them > > > >>and source them cheaply for replacement. > >> > >>Thank you in advance, > >>Anthony > >> > >> > > > > > >
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