Turbo noise (non Rover)

sln8458 · 13th January 2023, 06:58

Hi All,

I'm hoping that the more knowledgable here can help/explain.

Our Sedona has developed a turbo whistle noise. My first though was exhaust flexi on the front. Mechanic had a look and said the exhaust is fine. (15 years old!!).

There is no loss of power/performance, which suggests that the hoses between the air intake/intercooler and the turbo are fine.

The mechanic said it could be coming from the turbo, possibly a worn bearing.

just leave as it's fine.

Where is/could the noise coming from?

Steve

Jamiewelch · 13th January 2023, 07:18

Quote:

Originally Posted by sln8458

Hi All,

I'm hoping that the more knowledgable here can help/explain.

Our Sedona has developed a turbo whistle noise. My first though was exhaust flexi on the front. Mechanic had a look and said the exhaust is fine. (15 years old!!).

There is no loss of power/performance, which suggests that the hoses between the air intake/intercooler and the turbo are fine.

The mechanic said it could be coming from the turbo, possibly a worn bearing.

just leave as it's fine.

Where is/could the noise coming from?

Steve

Have a smoke test done, you'll see any air leaks, it could be tiny.

sln8458 · 13th January 2023, 07:28

Quote:

Originally Posted by Jamiewelch

Have a smoke test done, you'll see any air leaks, it could be tiny.

Forgive my ignorance, can yo explain the smoke test?
Is as simple as having a smoke source at the air intake and look for it leaking out?

Steve

13th January 2023, 06:58	#1
sln8458 Gets stuck in Rover 75 Contemporary SE 2.0 Diesel Auto 2005 Facelift Join Date: Dec 2010 Location: Norwich Posts: 589 Thanks: 90 Thanked 67 Times in 47 Posts	Turbo noise (non Rover) Hi All, I'm hoping that the more knowledgable here can help/explain. Our Sedona has developed a turbo whistle noise. My first though was exhaust flexi on the front. Mechanic had a look and said the exhaust is fine. (15 years old!!). There is no loss of power/performance, which suggests that the hoses between the air intake/intercooler and the turbo are fine. The mechanic said it could be coming from the turbo, possibly a worn bearing. just leave as it's fine. Where is/could the noise coming from? Steve __________________ Mods Fitted: Cruise Control; FBH with GSM (was FrenchMike's Remote) & dash button; Rear Blind; In-line Thermostat; wired in front & rear cameras; Mercedes DRL +DRL2; twin horns, twin usb power outlets, digital coolant temperature readout, Real Walnut dash, Walnut & black leather steering wheel, Walnut Handbrake grip, Towbar with full Rover harness. Rear seat cup holders. Wanted: Walnut auto gear stick handle Mods to do: all done , need to come up with some more.