~ any way to quiet the exhaust at start up?
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Junior Member
Joined: Dec 2014
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From: ohio
~ any way to quiet the exhaust at start up?
for my wife thinks its obnoxious and annoying to the neighbors...
perhaps anyway to eliminate the full rpm bump at start up and just start up at an idle like most cars?
love the exhaust noise while driving!
thanks in advance!
perhaps anyway to eliminate the full rpm bump at start up and just start up at an idle like most cars?
love the exhaust noise while driving!
thanks in advance!
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Joined: Oct 2014
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From: Kansas City, MO
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Joined: May 2014
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From: Mulmur, Ontario, Canada
I have no idea how to quiet this feature.. maybe your Jaguar mechanic knows how through computer settings.
I love the exhaust sound while driving, but would like to be able to get rid of the actual 'snap and pops' at times ... just personal preference.
Lawrence.
I love the exhaust sound while driving, but would like to be able to get rid of the actual 'snap and pops' at times ... just personal preference.
Lawrence.
.....(I annoy, therefore I am)The switch/brake sequencing that Mahjik references looks very useful.
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Senior Member
Joined: Nov 2013
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From: San Diego, CA
The first start from cold is loud regardless of the sequence of events. If you turn off and restart after the first cold start, the subsequent start is quieter. It's nothing to do with what you do, the first start is always turned up to 11 and another start shortly afterwards isn't.
Senior Member
Joined: May 2014
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From: Virginia
This reminds me of a magazine review of the F-type where the writer essentially said that starting the car in the morning will make your neighbors hate you, but then he digests that if you can afford this car then your neighbors probably wont be close enough to hear you anyway.
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From: San Francisco
Junior Member
Joined: Nov 2014
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From: UK
Try putting it into D quickly after starting, that can muffle it a bit. Not too quick though as the shifter won't accept the shift if it's too soon (will flash D at you and you will need to restart). The start up noise is quite a bit louder at first cold start.
Too bad. Guess we just have to resort to stuffing fiberglass up the tailpipes when trying to make a stealth departure at 5 a.m.
Senior Member
Joined: Oct 2014
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From: South Coast - UK
Your neighbours need educating ;-)
You don't say whether you have a V6 or V8, but essentially the procedure as follows will disable the loud startup:
1. Obtain 2 or 4 (Depending on which model you have) potatoes, NOT bananas as earlier suggested
2. Insert them into the exhaust pipes
3. Foot on the brake, hit the starter - ahhh peace
4. After around 30 seconds the potatoes (if not cooked) will exit due to build up of pressure and you are ready for the off.
My neighbours think I am obnoxious showering their house with potatoes every morning! However my wife is happy as we always have plenty of potato salad in fridge ;-)
Some people hey?!
You don't say whether you have a V6 or V8, but essentially the procedure as follows will disable the loud startup:
1. Obtain 2 or 4 (Depending on which model you have) potatoes, NOT bananas as earlier suggested
2. Insert them into the exhaust pipes
3. Foot on the brake, hit the starter - ahhh peace
4. After around 30 seconds the potatoes (if not cooked) will exit due to build up of pressure and you are ready for the off.
My neighbours think I am obnoxious showering their house with potatoes every morning! However my wife is happy as we always have plenty of potato salad in fridge ;-)
Some people hey?!
Member
Joined: Sep 2014
Posts: 43
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From: Dallas, TX
It can be fixed by trading the jag in for a boring but respectful to the neighbors tesla or prius.
Just for the love of god don't fill out any of those post purchase jaguar surveys complaining about the "annoying loud startup sounds that should be made more like a prius out of respect to neighbors". I love the loud startup in the enclosed garage of my building, neighbors be damned.
Just for the love of god don't fill out any of those post purchase jaguar surveys complaining about the "annoying loud startup sounds that should be made more like a prius out of respect to neighbors". I love the loud startup in the enclosed garage of my building, neighbors be damned.
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Joined: Jan 2012
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From: Phoenix, AZ USA
IIRC the exhaust valves are vacuum operated and isn't there a small vacuum pump and reservoir in the left rear quarter? The XK guys like to pull the fuse to disable the pump so the valves never close and it is loud all the time. Sounds like you want the opposite effect.
Pure speculation here but perhaps it is that the vacuum has bled down over night and the pump doesn't run long enough to get a strong enough vacuum to close the valves.
If it is like a fuel pump it may run a couple of seconds when the car is turned on (not started). You could try cycling the "key" a few times before starting rather than just turning on once.
If you really want to figure it out, you could check vacuum pressures to see if that's really what is happened when cold and modify the pump to run on command or for a period of time before starting.
Again, all speculation, but it is a mechanical system, so there will be some way to make it do what you want.
Pure speculation here but perhaps it is that the vacuum has bled down over night and the pump doesn't run long enough to get a strong enough vacuum to close the valves.
If it is like a fuel pump it may run a couple of seconds when the car is turned on (not started). You could try cycling the "key" a few times before starting rather than just turning on once.
If you really want to figure it out, you could check vacuum pressures to see if that's really what is happened when cold and modify the pump to run on command or for a period of time before starting.
Again, all speculation, but it is a mechanical system, so there will be some way to make it do what you want.
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Joined: Jul 2014
Posts: 6,176
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From: Maryland, USA
IIRC the exhaust valves are vacuum operated and isn't there a small vacuum pump and reservoir in the left rear quarter? The XK guys like to pull the fuse to disable the pump so the valves never close and it is loud all the time. Sounds like you want the opposite effect.
Pure speculation here but perhaps it is that the vacuum has bled down over night and the pump doesn't run long enough to get a strong enough vacuum to close the valves.
If it is like a fuel pump it may run a couple of seconds when the car is turned on (not started). You could try cycling the "key" a few times before starting rather than just turning on once.
If you really want to figure it out, you could check vacuum pressures to see if that's really what is happened when cold and modify the pump to run on command or for a period of time before starting. Moreover, cars without that system are plenty loud when revved.
Again, all speculation, but it is a mechanical system, so there will be some way to make it do what you want.
Pure speculation here but perhaps it is that the vacuum has bled down over night and the pump doesn't run long enough to get a strong enough vacuum to close the valves.
If it is like a fuel pump it may run a couple of seconds when the car is turned on (not started). You could try cycling the "key" a few times before starting rather than just turning on once.
If you really want to figure it out, you could check vacuum pressures to see if that's really what is happened when cold and modify the pump to run on command or for a period of time before starting. Moreover, cars without that system are plenty loud when revved.
Again, all speculation, but it is a mechanical system, so there will be some way to make it do what you want.
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Joined: Oct 2014
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From: Northeast
Perhaps he took a line from Groucho Marx and chose not to be a member of any club which would want him as a member?
