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95 Aero auto 2003

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2003 auto
2K views 4 replies 3 participants last post by  InEurope 
#1 ·
Hi, can anyone tell me why my engine knocks briefly on cold start-up -it's always done it and thee Saab main dealer said it was normal for this HOT engine?
regards - jo
 
#3 ·
Re: 95 Aero auto 2003 - START-UP KNOCK

it sounds more like a crankshaft knock I think, a bit like you might hear froma big engine or diesel?

it stops as soon immediately as the engine has started - it happens I think on the initial firing in the cylinders?

i seem to recall reading about something like this in a posting 4 months back, but I have checked and can't find it.

any ideas?

regards -jo
 
#5 ·
Mine's a MY95 2.3 LPT. Also gives a knock/rattle on startup. I asked at the garage, they said they all do it.
I have tried to locate the noise, doesn't seem to be the engine, somewhere right-front or right side of the engine compartment (note I hace a left-drive car)
 
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