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Home > General > High pitch sound from behind the grille. |
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djhampson Member Since: 08 Sep 2007 Location: Brisbane Posts: 124 |
Wouldn't our i6 friends hear the noise as well then? So far it seems to be limited to the TD4 engine. I still think its a high pressure pump or some component of the fuel system. Purely because it kicks in as soon as the car is unlocked as if reading the engine to be started. Something like the solenoid for the steering lock wouldn't need to engage until the key has been inserted. 2007 TD4 SE |
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18th Feb 2008 12:32 pm |
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LR2Seymour Member Since: 04 Mar 2008 Location: USA Posts: 1 |
I have the same problem as mentioned in this forum. As soon as I shut off my 2008 LR2, I hear a hissing noise. It shuts off after a while (I hear a solenoid or relay click)
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4th Mar 2008 4:10 pm |
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lanren Member Since: 26 Feb 2008 Location: Northwest Posts: 10 |
Hi Guys this high pitch sound you hear is the cooler on the turbo i had the same noise on my Audi TT. It stops the turbo from getting damaged after you switch off
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4th Mar 2008 5:07 pm |
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attox Member Since: 24 Jul 2007 Location: Genova Posts: 93 |
I recently was in the workshop of my LR dealer and speaking with the head of the mechanics he told me it is the EGR valve, being prepared in case the engine is eventually started again after it has been switched off. |
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4th Mar 2008 5:10 pm |
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Gambba Member Since: 07 Aug 2007 Location: Dubai Posts: 775 |
On the TT its not so much a cooler, but an electric pump that continues to recirculate coolant through the turbo housing after the engine switched off, and this in turn dissipates the heat. |
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4th Mar 2008 5:11 pm |
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chris@scears.com Member Since: 12 Mar 2008 Location: Rogaland Posts: 22 |
On diesel engines (TD4) the fuel has to be heated to be able to burn (living i a cold country) the EGR valve isnt it the same as a glow plug/heater? Thats what it sounds like to me |
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2nd Apr 2008 6:45 pm |
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