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Mk3 St Has Lost Its Growl :(


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#1 Slupanter

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Posted 20 April 2014 - 05:02 PM

My ST had a lovely growl while driving around. It growled while drove around normally and driving it fast. Now it's lost it. It was an induction growl. Where has it gone? Silly question but I'd like it back :(

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#2 Loz Cheung

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Posted 20 April 2014 - 05:13 PM

the noise shouldnt really have gone anywhere!

 

are there any known issues with the symposers on these? the only thing i can think of is to lift up the bonnet and see if the assembly's all still intact?



#3 Focus-Jonny

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Posted 20 April 2014 - 05:16 PM

The Mk3 ST has a system called a "sound symposer" which is simply plastic tubing with a electronically controlled butterfly valve attached which directs the sound of the engine into the cabin to help replace the engine growl that was characteristic on the old 5 pot 2.5L ST lump.

Its possible there is a fault with with the electronic controller causing this tubing to remain shut off!


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#4 Slupanter

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Posted 20 April 2014 - 06:15 PM

I think it could be the electrically controlled butterfly value. I'll pop it into ford. Does the car need a good tanking?
On a side note, can you lock it open or get it to open more often?

#5 Focus-Jonny

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Posted 20 April 2014 - 07:07 PM

Its designed to open up under heavy acceleration and stay shut during more moderate driving mate, it was developed that way so you could have the best of both worlds.


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#6 Loz Cheung

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Posted 20 April 2014 - 08:13 PM

its automated for all i know, but a few people ive read about who arent fans of it have located and pulled a fuse (i think, or module) out.

That could be somewhere to check too.



#7 Slupanter

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Posted 20 April 2014 - 11:39 PM

Yeah it's not opening up under load ether. Before pull of gave you a really nice growl and exhaust note.

So you think a fuse in the controller?


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#8 Slupanter

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Posted 21 April 2014 - 12:10 AM

Looking on the net. Other people have been having problems with the sound symposer been shut or open all the time. Back to ford I think


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#9 Focus-Jonny

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Posted 21 April 2014 - 06:09 PM

If you have warranty definitely take it back to them!


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#10 Slupanter

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Posted 23 April 2014 - 10:31 PM

Weird. I got my growl back tonight?
Haven't touch the car.


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#11 Slupanter

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Posted 29 April 2014 - 08:10 AM

Found the fix. Right sometimes the flap gets stuck and the best way to get it moving is to give the car a good spanking.


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#12 salsheikh

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Posted 29 April 2014 - 08:25 AM

i'd still take it to ford as the flap is getting stuck.



#13 Focus-Jonny

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Posted 29 April 2014 - 08:27 AM

Yeah get definitely get them to replace it!


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#14 Slupanter

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Posted 08 May 2014 - 08:48 AM

Right. Bristol street have said, yes there is a problem and there is a Software update coming out in July to fix the issue. All MK3 STs and covered I believe as it is a factory fault.
Hope this info is useful


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#15 Focus-Jonny

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Posted 08 May 2014 - 09:29 AM

That will help others that may have the same problem!


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