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Vw turbo s makes whistling sound when I start it

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There may be a intake air leak or a bearing that is on its way out. Once the oil gets to the bearing it will become quiet.

Posted on May 06, 2014

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Posted on Jan 02, 2017

j_del
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SOURCE: whistleing sound on golf gt tdi

It's probably the turbo you're hearing. They spin very fast and make a noise like that. Ever hear an 18-wheeler go by you and accelerate and they make that high-pitched whistle? That's the turbo spooling up. Now, if it sounds like a dentist's drill, that's usually a sign that the turbo is failing, but I'd bet that since your car is under four years old, as long as you've kept up on the maintenance, it's the normal turbo spool.

Posted on Aug 17, 2008

  • 396 Answers

SOURCE: 2.8td turbo making a whistling noise, head already

try to see if the blow off valves are stating open

Posted on Nov 20, 2009

  • 94 Answers

SOURCE: Nissan Navara STR 2006 d22 3lt turbo. Turbo is whistling very

Remember, what is heard as turbocharger noise may not be caused by a noisy turbocharger. Before replacing a turbocharger perform the following diagnosis.
A. If a loud whine or whistle is heard during acceleration and increases or decreases with rpm and load. This condition is most often the result of a loose clamp/hose at the turbocharger compressor outlet, charge air cooler inlet, outlet or at the intake manifold.

1. With the engine running at idle and the transmission in Park or Neutral with the parking brake set, feel for boost air escaping at each connection between the turbocharger compressor outlet and intake manifold. For limited access areas, spray soapy water on those connectors and look for bubbles.

2. Check the exhaust manifold and exhaust system for leaks.

I hope this helped.

Thank you,
Norse

Posted on May 16, 2010

  • 312 Answers

SOURCE: clutch makes whistle noise

Sounds like a throwout bearing is dry.

Posted on Jun 04, 2010

alicantecoli
  • 22095 Answers

SOURCE: vw passat 2006 whistle sound after changing

you must have a air leak between turbo and air intake somewhere so run engine and have a good look but if the old turbo was worn out then this is why it sounds different as its quite normal for these vehicles to sound a bit potent to say the least

Posted on Mar 10, 2011

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Audi a3 tdi 140 turbo sounds like its whistling for england why?


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VW Transporter T5 Overboosting turbo which causes engine shutdown


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1 Answer

Whistleing sound on golf gt tdi


It's probably the turbo you're hearing. They spin very fast and make a noise like that. Ever hear an 18-wheeler go by you and accelerate and they make that high-pitched whistle? That's the turbo spooling up. Now, if it sounds like a dentist's drill, that's usually a sign that the turbo is failing, but I'd bet that since your car is under four years old, as long as you've kept up on the maintenance, it's the normal turbo spool.

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Dodge ram 3500 clown whistle


sounds like you have a turbo with a bad bearing.
pull of the turbo and rotate it by hand to see if it is hanging up.
Most turbos start to make a different noise when they start to go.
Sometimes dirt can bypass the air filter if is not changed on a regular basis and can cause the turbo to fail or become dirty enough to cause it to spin slower, (the dirt prevents the exhaust to spin the turbo at the right speed and the air passing the fins can whistle), it will cause bearing failure after a while. Also if you have too much soot in your exhaust from too much oil, the exhaust side of the turbo can become too dirty to operate properly

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