Update - your dead right.
Member 'boots' spent 2 hours with me at my place, assisting diagnosing and we believe once I change the parts, fixing my St tng.
Not only a real genuine and great bloke but very technically capable.
We have kept contact, and I hope one day to repay the favour (just not with any technical issues!)
Thanks heaps Trent 
no probs Trent, glad to help
