Date: Fri, 01 Jul 2005 21:26:15 GMT
From: pmg <>
Subject: Re: 900 VERY annoying trouble

Thanks Charles Electronic ignition (fancier type gadgets. 1. Injectors were replaced with a (second hand set) some time ago with no problems. If it was injectors I wouldn't expect such a sudden change from go to who and vice versa. I have periodically used injector cleaners. 2. I'll check the spark plugs. Good logic. Charles C. wrote: > pmg wrote: > >> I have a 1984 900 GLE (Australian) fuel injected (non turbo). It's >> been a great car for the 21 years I've owned it and looked after >> perfectly. Over the last year the engine will intermittently stop. >> Often happens whilst driving. First it loses power and you are foreced >> to stop where it will idle only. Press the throttle and it splutters >> and gasps. Then eventually it won't even idle and stops completely. >> Repeated attempts to start it don't work. Then all of a sudden after a >> few minutes to an hour it will start again and run perfectly. >> Occasionally it will happen from start in the morning but very often >> after it's warmed up. It may happen more in damp weather but >> certainlyt doesn't need a big soaking. It has been to my Saab dealer >> countless times where they can't get it to repeat the problem. They >> have replaced the fuel pump, fuel filter, plug leads, cold start unit. >> Can anybody offer any suggestions? >> Pete > > > Interesting problem. I don't have an answer but here are some > suggestions. I would guess you either have a fuel problem or an > electrical problem and the problem is to identify which is the problem. > (Does your car have an ordinary distributor with points or one of the > fancier electronic gadgets ... beyond my time I am afraid). > > Similar experience from my 1979 900 GLE (injection non-turbo but I think > a different engine to your 1984 model). > > It did not display any of the running problems you have, however, once > stopped the engine could refuse to restart when warm. It also happened > once or twice with a cold engine. > > 1. SAAB suggested at the time (I could not afford to pay them to solve > the problem) that the fuel injectors have had it. It would be possible > to clean them or replace them, I could afford neither, so I was given a > bottle of some cleaning fluid (1 litre) that I added to a full fuel > tank. That liquid was supposed to be used once in the lifetime of the > car. It kind of worked. > > When it would not start with a warm engine it was always fuel starvation > (ie. I removed the sparking plugs and they were dry). Since then I have > come accross information which pointed to some sensor for warm starting > and something to do with fuel evaporation because of the heat of the > engine. *If it means something I hope someone else can explain more.* > > 2. Once or twice it did not start in cold mornings, removing the > sparking plugs showed that the engine was flooded with fuel, hence I > suspect(ed) electrical problems. > > > Other similar(ish) experience from 1983 900 GL(?) twin carb non-turbo. > > Eventually the coil went on that car (not sure if your car has a coil). > Its effect was to make starting difficult and running weak. > > ===================== > > I can't help with the problems you have when the car is running. But > when it does not restart warm or cold remove a sparking plug and if it > is covered in fuel, you most likely have an electrical problem like weak > spark. Else you have a fuel related problem. > > There is my life story with SAABs. Now I let the dealer clean me up ;-) > > If it helps at all. > Charles >

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