190 2.5D Loud random tapping from engine/Gbox area underside?

Phil_H

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Hi,
Been trying to trace a tapping sound that I thought was a lifter...it wasn't..then thought it might be a sticking injector so changed them. Still there, had the car up on the ramps yesterday and it sounds like its coming from the bottom rear end of the engine where it meets the g-box(Auto).

Its a random tap that gets quicker with engine revs, it'll tap for a few seconds then go...then come back...then go and so on? Sometimes will go completely at idle..then come back when you rev the engine.

Anybody got any ideas at all what it could be?

Thanks

Phil
 

Stu_CDX

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Long shot, but exhaust brackets or something?

I know a Cavalier of mine did this, I was mega bricking it until I realised it was the engine manifold heat shield...
 

The Crooner

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Long shot, but exhaust brackets or something?

I know a Cavalier of mine did this, I was mega bricking it until I realised it was the engine manifold heat shield...

I agree, check whether it has heat shields between the exhaust and floor of the car - the fixing points on mine had vanished.

Mine are currently off waiting to be refitted properly when I have time. My local exhaust place told me not to bother to refit them, but I will.

Tony
 
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Phil_H

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  • Thread Starter
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It sounds to mechanical to be a bracket or heat shield. I have had it up on the ramp and not seen anything out of place. It sounds like its either in the gearbox by the torque converter or the engine side of it?
 

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