Date: Wed, 28 Nov 2001 04:23:50 GMT
From: Thomas <>
Subject: Re: 1985 900s Intermittant Start Problem

I know what the problem is .... the non return valve in the fuel pump is faulty... or the accumator si leaking and then it causes all the fuel to drain back into the tank leaving the line, metering head and injectors empty I am guessing after you re-start it when its warm .. it starts instantly for a second or so then you crank it over forever ?? Bosch actually sell a replacement non-return valve let me know On Tue, 27 Nov 2001 04:50:32 GMT, "andrew" <> wrote: >I purchased a second-hand 1985 Saab at the end of August, and most of its >issues have been resolved, save one: the dreaded intermittant start problem. > >The car will generally start on the first crank in the morning (cold start), >but will often not re-start if I have driven it long enough to get the temp >up, and then left it for an hour or so. Additionally, it will often take >10-15 secs of cranking before the engine finally turns over and roars to >life. Once running, the car drives smoothly and idles ~ 1000 RPM. > >Every now and then white smoke comes out of the exhaust at startup (the >dealership thought it was a coolant leak into the head gasket, but the head >gasket checks out fine) > >So far the issue has stumped two Saab mechanics: an indy specialist in >Vancouver (who is scandanavian himself)and the Saab dealership in Calgary. I >have had to have the car towed on two separate occasions because it simply >would _not_ start. The problem does not appear to be consistent or related >to the weather at all. > > >Any suggestions would be appreciated. > >I will detail below what has been done (that I know of) to try and remedy >the problem: > >-> new fuel pump (it actually did die) >-> new fuel filter >-> new plugs >-> rotor ok >-> distributer cap ok >-> fuel pressure is fine >-> oil and coolant flush >-> new temp sensor >-> harness re-wire (many of the wires were pretty pooched when he opened it >up) >-> head gasket is fine > >thanks, > > > >andrew. >(this has been cross-posted to > > >

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