Collected my new (to me) 4.6 HSE and there was a 'grumbling' noise coming from the fan/water pump area.
On inspection I can move the fan which is attached to the viscous coupling and in turn bolted to the water pump. The whole thing is loose, pulley wheel, coupling and fan.
I have replaced a 3.9 water pump and know how that bolts together, is it the same with the 4.6? as my adjustable which fitted the 3.9 coupling nut is not big enough for this coupling nut so I cannot check it.
I am assuming all is similar or is there a known issue here with the viscous coupling connection to the water pump?
Please ... any help before I invest in a Haynes manual!!!!
AlunP