Buzzing noise
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Are you using an AUX cable to connect any other devices?
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Last edited by IronMike; 06-13-2015 at 10:30 PM.
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Just an idea , perhaps totally off base.
Regards
Ulrich
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My 2015 V6S had a buzz sound coming from the instrument cluster at various rpms from 2500 on up. When the AC was turned off, the buzzing stopped. When the AC was turned back on, the buzzing started again. I concluded that engaging the AC compressor, which is at the front of the engine, must transmit a vibration all the way through to the dash. How could that be? Open the hood and you will see, in the case of the V6, aluminum tubing carrying the refrigerant along the driver's side of the engine. It is clamped to the body near the wheel well. When I disconnected the clamp, allowing the tubing to vibrate freely, the buzzing stopped. Instead of this clamp, I zip tied it to an adjoining black bar so it would have only limited travel. My theory is that the aluminum tubing vibrates all the way from the compressor into the dashboard and rattles something in there at certain rpm resonant frequencies. Better to loosen it and let it vibrate on its own. Your V8 may or may not have this aluminum AC tubing but it is easy to run through this troubleshooting.
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anonymousjagman (07-11-2015)
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My 2015 V6S had a buzz sound coming from the instrument cluster at various rpms from 2500 on up. When the AC was turned off, the buzzing stopped. When the AC was turned back on, the buzzing started again. I concluded that engaging the AC compressor, which is at the front of the engine, must transmit a vibration all the way through to the dash. How could that be? Open the hood and you will see, in the case of the V6, aluminum tubing carrying the refrigerant along the driver's side of the engine. It is clamped to the body near the wheel well. When I disconnected the clamp, allowing the tubing to vibrate freely, the buzzing stopped. Instead of this clamp, I zip tied it to an adjoining black bar so it would have only limited travel. My theory is that the aluminum tubing vibrates all the way from the compressor into the dashboard and rattles something in there at certain rpm resonant frequencies. Better to loosen it and let it vibrate on its own. Your V8 may or may not have this aluminum AC tubing but it is easy to run through this troubleshooting.
I will give that a try
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anonymousjagman (07-11-2015)
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Buzzing Still Eliminated on 2015 V6S
I still don't have any more buzzing sound in my 2015 V6S when the engine is revving through its range. If you have a buzz, it is simple to do the diagnosis. Follow the AC aluminum line on the left side of the engine from the firewall toward the radiator. You will see that it is attached to the front of the wheel well by a clamp fastener. Simply unscrew that fastener so that the AC line is free to vibrate at its natural frequencies with engine rpm. If the sound goes away, then you have identified the problem and you go to the dealer to show them. Or, just leave it unfastened. If the buzzing occurs with or without the AC on, then there is a different problem. There are discussions in the forum about buzzing sounds from the left hand speaker in the A pillar, particularly in the 2014s. The factory may have fixed that problem since my 2015 does not have it. None of us should have the experience of having spent oodles of money on a car that has the same flaw as a $15000 4 cylinder subcompact with 50K miles on it. So the Jaguar factory and dealers better pay attention to details like this. The Jaguar factory should have caught this one in development and saved us the hours it took to determine what it was. (My dealer had no idea what it was and would have taken apart the dashboard to find it... a little scary.) Congratulations to Jaguar for designing such an interesting and entertaining car. But, come on, put more sweat in the details please.
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I still don't have any more buzzing sound in my 2015 V6S when the engine is revving through its range. If you have a buzz, it is simple to do the diagnosis. Follow the AC aluminum line on the left side of the engine from the firewall toward the radiator. You will see that it is attached to the front of the wheel well by a clamp fastener. Simply unscrew that fastener so that the AC line is free to vibrate at its natural frequencies with engine rpm. If the sound goes away, then you have identified the problem and you go to the dealer to show them. Or, just leave it unfastened. If the buzzing occurs with or without the AC on, then there is a different problem. There are discussions in the forum about buzzing sounds from the left hand speaker in the A pillar, particularly in the 2014s. The factory may have fixed that problem since my 2015 does not have it. None of us should have the experience of having spent oodles of money on a car that has the same flaw as a $15000 4 cylinder subcompact with 50K miles on it. So the Jaguar factory and dealers better pay attention to details like this. The Jaguar factory should have caught this one in development and saved us the hours it took to determine what it was. (My dealer had no idea what it was and would have taken apart the dashboard to find it... a little scary.) Congratulations to Jaguar for designing such an interesting and entertaining car. But, come on, put more sweat in the details please.
Spend sometime doing various tests to find the source of the buzzing and it is definitely coming from the AC. I will try to isolate which refrigerant line is causing the problem.
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If loosening a clamp eliminates the buzzing, take it to the dealer for them to resolve. Leaving the line to vibrate freely without clamping will lead to early fatigue failure of the line (cracks) or fittings (seals).
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I have no intention of leaving the line loose, The aluminum will fatigue for sure. Just have to isolate better. find a vibration absorption clip.