About a month ago the coupling from my licp to the turbo split and my icp came loose. I drove maybe 100 feet and parked it. Its been sitting for a month. I replaced the entire licp ( didnt like the other one, replaced with one from ETS). I took it for a test drive down the road and when I get over 3k rpms a loud whine comes from the engine bay. Could it be the belts because it sat or maybe the turbo? I know its hard to diagnose without hearing it but any ideas would help.

It continues for as long as I rev.
also 115k miles on motor and stock turbo. I never had an issue till now

 

Could be the belts from slipping due to moisture..but you'd hear it at initial startup.. not at just suddenly 3k rpms..
is it just at 3k only? does it continue as the rpms go higher or what? need more details.
Put the car in neutral and rev it while under the hood.. see if you can localize it.

 

Is it only when the car is moving? Or when reving it up at 3k rpm?

car is moving - sounds like bad tcase
any time - could be boostleak

 

Any more info?

Have you revved the engine passed 3K RPM from the engine bay to see if this same whine occurs?

 

LOL...we all asked him if he revved it in neutral...

 

I was by myself so I couldnt rev it and look under hood.
I feel stupid to say but I dont remember if it did it while sitting still. As soon as the car warmed up I headed down the road.
The speed didnt matter just the rpms. So if I was going 20mph and went over 3k it whined. If I was going 50 at 2k rpms it didnt

 

You can rev the motor without having to press on the accelerator...the throttle cable is the one that goes across your valve cover. Follow it and you will see where it connects to the throttle linkage (*not sure of the word). The linkage is spring loaded so turn it to rev the cars motor...

Not the best wording.... sorry..

 

throttle body black plastic piece that you push down and it will rev the car.. just don't push it all the way down

this:
Get video

 

Im normally a pretty smart guy but I never even thought of that. I'll give it a shot tomorrow. I've got my kids the rest of the night. thanks for everybodys responses

 

Well I revved the car in neutral and it didnt whine. So then I took it down the road and not only did the whine come back but I lost boost pressure. Im going to guess boost leak. It stopped building more than 5psi of boost.

 

yep. dont drive it till you get that fixed.

 

Your leak is likely gonna be found where the Jpipe mates to the turbo or jpipe to LICP. Notorious place to hear a notable leak coming into boost.

 

Did you install a supercharger? Cuz if you did, that may be it.

Good luck with your issue.

 

Yep that will do it.. good old leak test or just check all the connections till you find it and you should be good.

 

No supercharger for me. I get enough whining when the kids are in the car. Maybe HIGH PITCHED whistle would be a better description than whine. Anyway I'm going to get ***** deep in it monday. I have to work all weekend, 12 hour days too, so it'll have to wait. Again, thanks for the responses.