Start up noise
#1
Start up noise
Hi everyone, I am new to this forum. Just got my F type coupe V6S a month ago and its a really nice car to have.
I do have a question that needs fellow owners' advice. I am getting this weird noise from the exhaust during cold start. The first vid below is what I hear every morning.
This second vid is what happens when I turn on the active exhaust after a cold start
I have asked the dealer and they say its normal during cold start as the valve is opening. Just wanna know if fellow owners hear the same sound as I do.
Thanks for any advice.
I do have a question that needs fellow owners' advice. I am getting this weird noise from the exhaust during cold start. The first vid below is what I hear every morning.
This second vid is what happens when I turn on the active exhaust after a cold start
I have asked the dealer and they say its normal during cold start as the valve is opening. Just wanna know if fellow owners hear the same sound as I do.
Thanks for any advice.
#2
What I heard on your vids is odd, but I heard the same thing on both videos. The valves on active exhaust should be always open on start-up. I didn't hear any change in volume associated with valves opening and closing, but it does sound something like an air leak, and the valves are vacuum actuated.
Last edited by Foosh; 03-02-2015 at 11:27 PM.
#4
#6
Greetings and welcome.
I too have a V6S Coupe and based upon your videos I have never heard the same "noise" coming from mine. And I KNOW all about "cold" starts considering where I live.
I would check that out a bit more if I was you (coming here a great place to start; no pun intended).
Good luck and let us know.
RJ52
I too have a V6S Coupe and based upon your videos I have never heard the same "noise" coming from mine. And I KNOW all about "cold" starts considering where I live.
I would check that out a bit more if I was you (coming here a great place to start; no pun intended).
Good luck and let us know.
RJ52
#7
Trending Topics
#9
#11
I'm assuming hoks that this sound is the same (consistently) upon each and every - as you say - "cold" start? I agree that your dealer upon your first service would be the best option to diagnose what others here believe to be an oddity, but perhaps it's nothing. Unless others here disagree I wouldn't worry too much - if at all - about it.
One thing's for sure: the myriad of glorious sounds coming from all of our exhausts are brilliant and intoxicating but, I'd add, varying.
Here's to it being a sound about nothing. (Like the show Seinfeld).
If kingkong79 states that his F-Type makes the same "noise" upon starting up - as well as what DJS says - and they have no [other] issues once it's warmed up, it probably is.
Let's hope so.
One thing's for sure: the myriad of glorious sounds coming from all of our exhausts are brilliant and intoxicating but, I'd add, varying.
Here's to it being a sound about nothing. (Like the show Seinfeld).
If kingkong79 states that his F-Type makes the same "noise" upon starting up - as well as what DJS says - and they have no [other] issues once it's warmed up, it probably is.
Let's hope so.
Last edited by RickyJay52; 03-04-2015 at 02:27 AM.
#12
Andrew, only one Jag dealer here, we are a tiny island
RJ, yes its very consistent, happens daily during first startup. I agree probably not a big issue but dealers seems to always say things are "normal" without wanting to look deeper into them...at least nowadays we have forums to turn to
RJ, yes its very consistent, happens daily during first startup. I agree probably not a big issue but dealers seems to always say things are "normal" without wanting to look deeper into them...at least nowadays we have forums to turn to
#13
Andrew, only one Jag dealer here, we are a tiny island
RJ, yes its very consistent, happens daily during first startup. I agree probably not a big issue but dealers seems to always say things are "normal" without wanting to look deeper into them...at least nowadays we have forums to turn to
RJ, yes its very consistent, happens daily during first startup. I agree probably not a big issue but dealers seems to always say things are "normal" without wanting to look deeper into them...at least nowadays we have forums to turn to
Don't think it will come to that however.
#14
Here is a video of my V6S startup with active exhaust enabled. Sounds very similar to yours.
Last edited by kingkong79; 03-04-2015 at 10:41 AM.
#16
I've read other people saying the active exhaust will make some noises on cold start so that's why I didn't really look into it. On a cold start if I let the car warm up and then turn on the active exhaust I will never hear any of those noises throughout the day. I think it could be just the active exhaust initializing the gases/pressure but I could be wrong. Anyways it does not bother me.
#17
According to official JLR documentation on the active exhaust system, the valves are supposed to be always open on initial start-up. As a result, it shouldn't matter whether the valve open/close button is in the on or off position, for those cars with the switchable option. Some active exhaust cars do not come with the switch, if it wasn't selected as an option.
It could be that some of you are hearing the valves close after initial start-up.
It could be that some of you are hearing the valves close after initial start-up.
#18
#20