Vauxhall Astravan engine making tapping noise
I've just put a second hand engine in my 2001 Vauxhall Astravan. From what I can tell, the engine was good and the only thing that needed changing was the fuel pump. However, I started it up and it is making a loud knocking/tapping noise from the top end of engine. Any ideas what this could be?
Asked on 27 August 2013 by funkypunk
![](http://images.honestjohn.co.uk/imagecache/file/pad/120x120/media/16477727/537450_458533677529584_1473549666_n.jpg)
Might be an airlock between the fuel pump and the injector rail.
Tags:
vans
technical issues
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