Welcome to the Australian Ford Forums forum.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and inserts advertising. By joining our free community you will have access to post topics, communicate privately with other members, respond to polls, upload content and access many other special features without post based advertising banners. Registration is simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact us.

Please Note: All new registrations go through a manual approval queue to keep spammers out. This is checked twice each day so there will be a delay before your registration is activated.

Go Back   Australian Ford Forums > Club and Speciality Forums > Forum Community Car Clubs > AU Falcon.com.au

Reply
 
Thread Tools Display Modes
Old 19-04-2010, 11:34 AM   #1
sd1800
FF.Com.Au Hardcore
 
Join Date: Jun 2005
Location: Bexley, Sydney
Posts: 658
Default Engine/Speaker Interferance

I have just noticed a issue with the front left speaker. It will happen regardless of whether the radio is on or off. It basically whistles or makes a hi-pitch whine noise at idle. It gets higher pitched if I rev from idle up to about 2000rpm after which point it goes away but will then return when the engine returns to idle.

It will not to do all the time but is rather a intermittant problem.

Completely stock & untouched AU1 premium sound (with the stacker in the boot, not in-dash).

Any help would be much appreciated.

__________________
Formerly LV Focus XR5, AU Fairmont Ghia V8 & EBII Fairmont I6.

Now......
2012 FG MK2 XR6 Turbo
- Manual & Luxury Pack
- 302rwkw

2019 Escape St-Line
sd1800 is offline   Reply With Quote Multi-Quote with this Post
Old 19-04-2010, 02:00 PM   #2
Halfmo Rocks
Bearded Hermit
 
Join Date: Jul 2009
Location: blue mountains, NSW
Posts: 449
Default

i have same prob...never had it on factory unit, but when that died & i got an aftermarket unit it makes the noise now. don't notice it all the time though
Halfmo Rocks is offline   Reply With Quote Multi-Quote with this Post
Old 19-04-2010, 04:11 PM   #3
Riksta
Captain Malcolm Reynolds
 
Riksta's Avatar
 
Join Date: Mar 2007
Location: Adelaide
Posts: 3,830
Default

Yeah I get it on my aftermarket up to whatever RPM I do.

Gets higher pitched the more RPM you do, almost sounds like a turbo spooling up.
__________________
Currently: 2014 Mazda6 GT (Daily) and 1999 Mazda MX5 (Fun Car)
Previously: 2001 Ford Escape XLT; 2010 MC Mondeo; 1984 FD LTD; 2001 AU2 Falcon Forte; 2005 LS Focus Zetec; 1988 RE Colt; 1982 RB Colt; 1974 KE20 Corolla
Quote:
Originally Posted by Nikked
Riksta likes VN's so much, he has the ashes of a VN in a jar on the mantle piece, a vile of VN engine oil hanging from his neck and a BT1 build plate locked up in a safe, buried under 6ft of concrete.
Quote:
Originally Posted by Day-mow
pretty much what has happened here is i trolled you. and it was fun.
Riksta is offline   Reply With Quote Multi-Quote with this Post
Old 19-04-2010, 05:19 PM   #4
Mr Hardware
Flairs - Truckers Delight
 
Mr Hardware's Avatar
 
Join Date: Aug 2006
Location: Brisbane Northside Likes: Opposite Lock
Posts: 5,731
Tech Writer: Recognition for the technical writers of AFF - Issue reason: The excellent how to on LPG jet cleaning. 
Default

grounding/earthing
__________________
Current: Silhouette Black 2007 SY Ford Territory TX RWD 7-seater "Black Banger"
2006-2016: Regency Red 2000 AUII Ford Falcon Forte Automatic Sedan Tickford LPG "Millennium Falcon"
Mr Hardware is offline   Reply With Quote Multi-Quote with this Post
Old 20-04-2010, 11:57 AM   #5
sd1800
FF.Com.Au Hardcore
 
Join Date: Jun 2005
Location: Bexley, Sydney
Posts: 658
Default

Quote:
Originally Posted by Mr Hardware
grounding/earthing
I intitally thought this but have been doing some research about "Suppressors" that are build in to the headunit amp to get rid of this interferance.

I guess it can't hurt to clean up the groundings first.
__________________
Formerly LV Focus XR5, AU Fairmont Ghia V8 & EBII Fairmont I6.

Now......
2012 FG MK2 XR6 Turbo
- Manual & Luxury Pack
- 302rwkw

2019 Escape St-Line
sd1800 is offline   Reply With Quote Multi-Quote with this Post
Old 21-04-2010, 11:34 AM   #6
Bushbasher
When in doubt, GAS IT!!
 
Bushbasher's Avatar
 
Join Date: Sep 2006
Location: Lower Eyre Peninsula, SA
Posts: 3,018
Default

Quote:
Originally Posted by sd1800
It gets higher pitched if I rev from idle up to about 2000rpm after which point it goes away but will then return when the engine returns to idle.


It's not that it goes away it's just that the frequency goes too high for you to hear it.

I'd hate to be a dog in the back seat though.



Bushbasher
__________________
.





HERS- BFIII Wagon Gold, alloys, dual fuel, bullbar, big tow pack, trans cooler, fully rebuilt HD suspension, Clarion, alarmed, full 2 1/2" sports system, mint body

MINE- AUII Forte
Meteorite, dual fuel but otherwise bog stock.

MINE- AUII Fairlane Sportsman Liquid Silver over meteorite,HIDs', Airhog, Eagle Leads, dual fuel, custom rear springs, BA slotted discs + a second one for spares

.
Bushbasher is offline   Reply With Quote Multi-Quote with this Post
Old 21-04-2010, 04:58 PM   #7
75van
Van Mad
 
75van's Avatar
 
Join Date: May 2006
Location: Legana, Tasmania
Posts: 181
Default

In older cars the cause of this problem was often the suppressor mounted to the alternator. I can't say that I've poked around the alternator of an AU all that closely so I don't know if they still mount them there, but it could be worth a look...
__________________
The new wheels: 1975 Ford Escort panelvan. Build blog here.
75van is offline   Reply With Quote Multi-Quote with this Post
Old 02-09-2010, 10:24 PM   #8
Teknoslasher
Travis - 1999 Ford AU S1
 
Teknoslasher's Avatar
 
Join Date: Sep 2008
Location: Toowoomba.
Posts: 432
Default

There's a product produced for Amps that have this issue, worked wonders for my car and this problem. I think its a product called "Scorpion", I got it from Wow. I'll see if I can find where it is tomorrow.
Teknoslasher is offline   Reply With Quote Multi-Quote with this Post
Old 02-09-2010, 11:32 PM   #9
JC
Miami Pilot
Donating Member2
 
JC's Avatar
 
Join Date: Jan 2005
Location: ACT
Posts: 21,701
Tech Writer: Recognition for the technical writers of AFF - Issue reason: Writing tech articles 
Default

I reckon the speaker needs to be replaced.
__________________
-----------------------------------------------------------------
The Hammer: FG GTE | 376rwkw | 1/4 mile 11.793 @ 119.75mph 1.733 60' (4408lb)
1 of 60 FG MK1 335 GTEs (1 of 118 FG Mk 1 & 2 335 GTEs).
Mods: Tune, HSD/ShockWorks, black GT335 19” staggered replicas with 245 & 275/35/19 Michelin Pilot sport 5s

Daily: BF2 Fairmont Ghia I6 ZF, machine face GT335 19” staggered Replicas with 245s and 275s, Bilsteins & Kings

FPV 335 build stats: <click here>

Ford Performance Club ACT
JC is offline   Reply With Quote Multi-Quote with this Post
Old 03-09-2010, 12:17 AM   #10
tickfrd6
Regular Member
 
Join Date: Aug 2009
Location: Melbourne, Gladstone Park
Posts: 489
Default

I had exactly the same problem as you guys. It was such an annoying noise. I ended up grounding it somewhere else and the noise stopped so check your grounding before spending the mulah.
__________________
Au xr6: tickford kits, tickford 17s, momo T Bar and wheel, leather, lowered on ultra lows, 2.5" cat back with hot dog muffler, K&N panel filter and loving the car as a P plater

Future mods:
19" staggered wheels
Clear side indicaters.

That is all
tickfrd6 is offline   Reply With Quote Multi-Quote with this Post
Reply


Forum Jump


All times are GMT +11. The time now is 11:35 AM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Other than what is legally copyrighted by the respective owners, this site is copyright www.fordforums.com.au
Positive SSL