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need help !!

945 views 6 replies 2 participants last post by  The Nun 
#1 ·
Basically am stuck with what's wrong with my 02 mini one
When in gear and driving it developed a loud banging sound
However when you let off or dip the clutch the sound goes
And there is no sound when you are just sat so what could this be ?? Some one please help ?? :(
 
#2 ·
Clutch, flywheel or gearbox then?

Depends when the banging occurs though, is it when its under load ie accelerating in a gear or all gears? does the car feel smooth when its making the noise?
Does it happen when the engines labouring and its the vibration causing the exhaust system to knock?
Worn engine mounting causing the engine to move excessively?
Does it knock continuously when its doing it or just occasionally?
Is the knock road speed related? or engine speed related?
Does it knock at the same frequency all the time, or faster sometimes than others?

Could be many things, a bit more info is really needed.
 
#7 ·
Strange, I suppose really you need a garage with a rolling road so you can run it up whilst you look under the bonnet to locate the area the knock is coming from.
Assume youve looked around yourself and theres nothing obvious you can see?

If its really that bad you could be doing more damage by continuing to run it?
 
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