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Hey all.
I have been hearing a knocking/tapping sound that seemed to be coming from the nearside dash area.
Thinking it was something rolling around in the tray area, I removed everything and yet it is still happening.
It must be coming from the engine but sounds like it is from the dash/bottom of window area.

It happens randomly, 10/20 knocks then nothing for a while, then another few, nothing, then lots more.
Whether I am accelerating or cornering seems to make no difference, it's just random.

I drive like a nun so it doesn't get caned.

Anyway, if anyone has any idea I would be most appreciative :)

Cheers J

98 T4 2.4 hightop
 

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Does it only do it while driving around or when stationary as well?
Is the rate of knocks tied to engine speed?
Does it sound tappety? then possibly a hydraulic lifter getting a bit old and sticky, or maybe the cam driven vacuum pump for the brake servo
Could it be drive shaft, find empty car park and do tight as possible full circles going to the left for a few full circles and then to the right, this should show any clonking from CV joints
On Caravelle 2.5 ACV there is a cabin air filter on engine side of bulk-head on the nearside of vehicle, possible that its loose and making noises but they'd be small noises.
 
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