I can't hear any vac leaks and all pipes seem sound, i checked them when i had the upper manifold off.
Where abouts is the purge solonoid valve located?
Something i never mentioned in my last post but when i go to park the car on my driveway, i'm relying on the idle speed to move along slowly just to straighten up. When i get to borderline of stalling i dip the clutch then the rpm shoots up to about 2000rpm then goes back to normal straight away.
When i've had a decent run of lets say 20 miles i'll restart the car, the revs will dip down to about 4-500rpm then recover to normal which is pretty much how all of my previous V6's have worked over the years.
Apart from this fault the car runs fine, pulls very well with no hesitations at any rpm.
Going back onto the purge soloniod valve you mentioned, is this a costly operation as in an expensive part? Or did you have this done under warranty?
Purge solenoid is part of the EVAP system.
Its location is between the brake servo and inlet manifold,it has an electrical 2 wire plug and 2 10mm pipes attached one has a metal crimp.
I had mine replaced as it had an intermittent fault,the part costs about Â£70.
Another one to look at is the clutch master cylinder ,that has a vacuum pipe fitted to and that can cause stalling and eratic idling.
I had that replaced last spring not long after i got car,cos it kep't stalling when setting off.
When my engine is warm this solenoid erratically clicks in time with the engine's idle, its almost like an injector sound but sounds louder and more metallic like a relay? Thats the best way i can describe it.
Its only happens when the car has warmed up, never when cold or during warm up.
It does it for a few seconds then stops, does it for a few seconds then stops.
The more i look at this the more i'm thinking its at fault.
I'll try and investiagte tommorow and report back, thanks for your replies on this its much appreciated. :L