V6 Rattle

[woody804]

Hi all, my ZT180 has a rattle on start up that lasts around a minute or so then goes away, I've changed the oil to no avail, it sounds like plastic slapping near the inlet manifold but then stops after a minute?
Confused.com lol
Cheers
Paul

[Greeners]

sounds like the butterfly in the inlet manifold is on its way out...

[woody804]

Would it not rattle all the time tho?

[dattrike]

purge valve? mine does it too, disappears after a while.

[woody804]

It's not the purge valve, it's more like a plastic rattle that a tick lol

[stocktake]

If it were a failed vis motor, half open/closed highlighting a worn manifold I would expect it to be a constant rattle.

[SD1too]

Hi all, my ZT180 has a rattle on start up that lasts around a minute or so then goes away ...
Paul,

I had this, and you're not going to believe me but it was a cut in the auxiliary drive belt.

Simon

[kaiser]

It is very likely the butterflies loose on the rod - or even off the rod. For some reason it makes most noise on start up -- initially. Eventually it becomes more constant, and you will have to do some surgery or replacement unless you want the car to sound like a bad diesel.