XK8 / XKR ( X100 ) 1996 - 2006

High Pitch Whine in Engine Compartment... any ideas?

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Old Sep 17, 2011 | 02:16 AM
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Default High Pitch Whine in Engine Compartment... any ideas?

First off, I am not a mechanic.

There is a new high pitch whine, similar in sound to my Chevy Suburban's fuel pump. It's coming from the engine compartment, from the best I can tell, it's behind the supercharger around where the distributor should be.

The whine is pretty much constant. It does change pitch going from park to drive, but revving the engine or driving it does not really change the noise as far as I can tell.

It's going to the shop on monday anyways, but any ideas of what it is?
 
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Old Sep 17, 2011 | 08:04 PM
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Wow, not a single response :\
 
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Old Sep 17, 2011 | 10:48 PM
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It sounds like my ex-wife might be in your engine compartment.
 
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Old Sep 18, 2011 | 12:56 AM
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It could be a couple of things, but I can't see the point of guessing to be honest, especially not when you bring your car, as for a good technician it is easy to spot. A recording would have helped though.
 
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Old Sep 18, 2011 | 03:08 AM
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Originally Posted by Reverend Sam
It sounds like my ex-wife might be in your engine compartment.
 
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Old Sep 18, 2011 | 10:23 AM
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There is no distributor.
Anyway, the whining noise comes from your acc. Belt.
Easy to replace
 
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Old Sep 18, 2011 | 05:03 PM
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Originally Posted by Jochem00
There is no distributor.
Anyway, the whining noise comes from your acc. Belt.
Easy to replace
Sorry, was having a bad day...
 

Last edited by xenophobe; Sep 28, 2011 at 09:43 PM.
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Old Sep 18, 2011 | 07:15 PM
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It may be the throttle body. They make some noise even when the key is just in the on position. Try the key to on, with the engine off and see if that's the noise you're talking about.
 
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Old Sep 19, 2011 | 01:27 PM
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Agree with 80sRule (which they do BTW, totally). Then again, it could be the climate control. Either way, its normal, and should not be of any concern. If you hear crazy ticking from your driver fenderwell, then I CAN tell you what that is.
 
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Old Sep 19, 2011 | 02:50 PM
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Well if it wasn't Rev SAMs ex then it could be this
BBC News - Cat travels 17 miles under car bonnet into Aberdeen
Quite appropriate for a Jaguar
 
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Old Sep 28, 2011 | 11:20 PM
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Problem solved... it was this thing:

It was the first time my indie shop had ever seen this go bad, and Jaguar no longer stocks this part so I had to get a used one:

 
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Old Sep 29, 2011 | 06:29 AM
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What is it?
 
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Old Sep 29, 2011 | 07:17 AM
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Its a supercharger bypass actuator
 
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Old Sep 29, 2011 | 09:59 AM
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What in the heck does it do? Wow Jag. doesn't carry this part for a 2005 MY---hard to believe! Maybe it's special order?
 
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Old Sep 21, 2015 | 02:41 AM
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XENOPHOBE, I am very late to this post but I am having the exact same problem! Just bought a 2011 XKR converible. What exactly was the fix??
 
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Old Sep 21, 2015 | 04:09 AM
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Sounds like it's the solenoid-activated flap that's open except when on boost. Wreckers should have one.
 
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