I've recently had a complete health check on my 95 Zed TT auto. It came back with a clear bill of health, apart from 1 tiny detail. I was informed that when cold there is high pitch sound coming from the engine bay. The guy who did the health check advised that this isn't anything to worry about as more robust pistons where put into the engines for this year. He seemed to remember that this was normal on the VG30DETT engine for my model.

 

Can this be verified, else I'm likely to need a rebuild, and after just having bought the car don't really want to spend another 2K before I actually start enjoying it. The person who did the health check is a nissan master builder.

Could be an air hose loose, i'm sure someone will give you a better answer later on.

 

cheers

I had a clamp loose on one of the hard pipes and for weeks its been been whining when you drive it on boost like a rally car.

 

Thought it was just because the air was colder it was boosting more but turns out it was a simple hose clamp. Quick tighten up and all is well again and the car is quiet as a mouse.