My GU sounds like its supercharged!

[trekster]

Hey guru's, my GU is starting to get a whine to it similiar sounding to a supercharger, definitely related to the revs, I checked the belts they seemed fine, haven't had a chance to have a good look due to us moving, wondering if there's an idler that could be noisy?

Any insight would be great.


Cheers,
Eric.

[paulyg]

Could also be alternator bearings.

[mudski]

Take the belts off and if it stops, it one of the pulleys etc etc.

[threedogs]

http://www.ebay.com.au/itm/261330332820?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649

Or leaking/split EGR
or warped exhaust manifold

[Wizard52]

Could be boost controller venting excess boost.
Mine has a whine and by trial and lots of errors, decided it was the boost controller once boost goes over 10 psi.

[taslucas]

Id guess pulley first. Idler, alternator or aircon. The aircon pulleys (and clutch) don't like water/mud

[Stropp]

also check the intercooler is not split, or the hoses that will whistle like steam.

[trekster]

Reckon it could be belts? Had a look at them on the weekend they seem to be a little slack and starting to crack, going to look into replacing them.

[trekster]

Also most audible after 2000rpm, anything below that and its I inaudible

[happygu]

If the belts are slack, that could be pointing to the tensioner pulley.....

Haven't you always wanted a supercharger anyway?

Mic

[Tomdinneen]

don't forget to check all turbo hoses and intercooler hoses