Someone is shaving behind my dashboard
#1
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When I sit in my 2008 XKR with the ignition off, trying to enjoy the silence and meditating on why I haven't finished replacing all the split joints in the rear suspension, there is a continuous sound like an electric razor coming from somewhere behind the speedometer. Ok, it's not as loud as my razor, but it's very noticeable with the engine off. It's there all the time. Whoever it is, never finishes shaving!!!
Anyone else have a similar noise? What the hec is it? If it was a purr I could live with it!
Mark
Anyone else have a similar noise? What the hec is it? If it was a purr I could live with it!
Mark
#3
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The small aspirator fan is an integral part of the climate control system. It goes into operation the instant the driver's door handle is pulled and it continues in operation for 15 minutes or more after the engine is shut off. This operation pattern has led many to think they have faulty fan operation so that it runs constantly. Not so. What I have described is an intentional operation pattern to enable the climate control to reach desired settings quickly. Every modern Jaguar CC system follows this pattern.
If the fan is too noisy, the cause is usually dust and dirt build up. It can be cleaned, and/or it can be easily replaced.
If the fan is too noisy, the cause is usually dust and dirt build up. It can be cleaned, and/or it can be easily replaced.
#4
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Thanks for the quick responses. I just checked it out and indeed it is the aspirator. It's held in by one screw. The whole unit vibrates. The vibration transmits to the hard dash in which it is mounted so it acts like an amplifier. So, I sprayed mine with WD-40. It had no effect. There's a very thin rubber gasket around where it sits against the dash. I had some Noiko sticky sound deadening sheets so I took a sheet, cut out a hole and stuck a piece around the aspirator. Basically useless. If you put the screw in, the vibrations travel thru the screw. I left the screw out and put the dash trim back on. It's still buzzing merrily away. If you like mini motorbike sounds in your car, I have the perfect car for you.
Well I guess I shouldn't worry. When I get to 60mph it will be drowned out by the horrible droning sound that I still need to investigate!!
Well I guess I shouldn't worry. When I get to 60mph it will be drowned out by the horrible droning sound that I still need to investigate!!
![Frown](https://www.jaguarforums.com/forum/images/smilies/frown.gif)
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bonny68 (02-11-2022)
#5
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Does the resonance occur around 1500 to 1800 rpm? The early cars (mostly the 07, but yours might fall into that range) had this resonance which is very annoying because it is right in the rpm range used in everyday driving. Jaguar designed a fix for this which I had fitted to my 07 XK - it consist of a brace between the exhaust and the transmission, and it entirely and instantly eliminates this irritating droning.
#6
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Yes, I'd say that's about the rev range. It makes driving on long journeys very tiresome. I saw that bracket solution (C2P13477 and C2P13478) but Jaguar wants $270 each for the two brackets. I was thinking $20 each would be about right.
It's a lot to spend if it doesn't fix it. Maybe I could sell them on Ebay for $300 if it doesn't work.![Smile](https://www.jaguarforums.com/forum/images/smilies/smile.gif)
It's a lot to spend if it doesn't fix it. Maybe I could sell them on Ebay for $300 if it doesn't work.
![Smile](https://www.jaguarforums.com/forum/images/smilies/smile.gif)
#7
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#8
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Does the resonance occur around 1500 to 1800 rpm? The early cars (mostly the 07, but yours might fall into that range) had this resonance which is very annoying because it is right in the rpm range used in everyday driving. Jaguar designed a fix for this which I had fitted to my 07 XK - it consist of a brace between the exhaust and the transmission, and it entirely and instantly eliminates this irritating droning.
#9
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T..... It's held in by one screw. The whole unit vibrates. The vibration transmits to the hard dash in which it is mounted so it acts like an amplifier. So, I sprayed mine with WD-40. It had no effect. There's a very thin rubber gasket around where it sits against the dash. I had some Noiko sticky sound deadening sheets so I took a sheet, cut out a hole and stuck a piece around the aspirator. .....
![](https://cimg1.ibsrv.net/gimg/www.jaguarforums.com-vbulletin/800x530/xk_aspirator_a5ab5857636055f1ca64a8cdffd16daceaba64fa.jpg)
If the sound deadening sheet hasn't worked, perhaps the foam adhesive strips used to fix number plates attached to the back of the veneer where the Aspirator rubber contacts will prevent the vibration.
Graham
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Stuart S (02-15-2021)
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