I got a strange sound at start up today (01 turbo) I thought it might be diverters but happened at low idle with cold engine.. Hummed for about 30 seconds and went away. It happened for a short time on a start up 30 minutes later, so I drove to Champion Motors and of course could not dupilcate it. I do not hear anything now. Maybe it was a pump or something.

 

split/loose hose from/to turbos?

Regards,
BD

 

Car is haunted, sell it quickly and don't watch the video with the circle in it!

 

Maybe DV"s???

 

On a skyline I drove the 2nd turbo would honk when it came on the first time. Possible it is the turbo making the noise but could also be a boost leak of some sort. If you have a boost gauge try and see what it gets up to and if its lower then normal.
-Daniel

 

Could be a loose hose, simple fix.

 

WHERE IN THE CAR IS THE NOISE COMING FROM?

 

It definitely sounds like the diverter valves to me.

 

I sometimes get it too... but I have the evo dvs...and defiantelty no boost leaks. to me it sounds more like a chirping sound coming from dvs???

 

DVs... easy fix

 

what do i do Alex? the sound has been there ever since they were put in.... (on and off)

 

I get a similar sound that varies with a tug on the steering wheel. Sounds like the power steering hydraulic pump. Only with cold engine and disappears when everything warms up.