When my car comes on boost it whistles,i thought it was a air leak at first but the boost pipes seem to be done up ok,do you think this is the standard turbo on its way out?

 

not balanced properly?

 

My old turbo used to do that....and that was shagged! Mine whistled like that for ages but still produced the boost ok, when i took it off to replace it tho there was more play in the shaft than u could shake a stick at! So i'd say it's probably past its best mate!

 

i thought turbos whistled!?

 

mine doesnt whistle but you can it sucking the air really loud

 

well it never used to wistle untill i had all the boost pipes off when i done my clutch,i just put it down to a air leak from a pipe not done up enough,but then the noise went but has come back after about 4days,so i checked em all and all seem ok but wistles more now!

 

A whistling turbo points to an out of balance turbo, which means its on its way out.

 

dont all turbo's whistle???????????????????????????????

 

no

 

really?? what about when you hear new turbo diesel cars, they whistle, thought that was the turbo noise??

 

the turbo shouldnt whistle at all really,unless there is a problem brewing! modern turbo diesel's whine more than whistle!!

 

weird....

 

As far as I know mate, a turbo only whistle's when it is out of balance. The louder the whistle the worse the balance. Im no expert, and someone may be able to shed a bit more light on it.

My Turbo Derv that I have whistles, but then again, it's pretty fooked! lol

 

"Turbocharger whine is often caused by excessive bearing wear. What generally happens is that the bearings wear allowing the impellers to rub against the compressor housing of the Turbocharger. This causes the whistling during acceleration. This is not to say that all Turbochargers that whistle need to be replaced. Some Turbochargers whistle for years without failure. Frequent oil changes will help prevent Turbocharger failure!"