Fordmods Logo

Strange humming sound between 85 - 100km/h 

 

Page 1 of 1 [ 7 posts ] 

 
 Post subject: Strange humming sound between 85 - 100km/h
Posted: Tue Feb 14, 2012 3:41 am 
Stock as a Rock
Offline
User avatar

Posts: 124

Joined: 15th Jul 2011

Gallery: 7 images

Location: Sunshine Coast
QLD, Australia

Since I've owned my EL Futura it has made this wierd humming sound when travelling around 85 - 100km/h... I know sounds are hard to describe/interpret with words but bear with me.

The sound is not like a constant hummmmmmmmmmmmmmmmmmmm ... its more like a hummm humm humm humm humm humm (and so on...) the sound isn't terribly loud but is certainly noticeable and hasn't got any better or worse over the 1 year that I have owned the car. If I maintain a speed between 85 - 100km/h when it makes the sound it wont go away unless I speed up or slow down.

Sorry if it's hard to get what I am trying to describe, but does anyone have any ideas or suggestions as to what it may be? My car has 114,500km on the clock if that helps.

Thanks in advance, your help is always appreciated!
Top
 Profile  
 
 
 Post subject: Re: Strange humming sound between 85 - 100km/h
Posted: Tue Feb 14, 2012 4:28 am 
Getting Side Ways
Offline
User avatar

Age: 102

Posts: 466

Joined: 22nd Jun 2011

Ride: '97 EL Fairmont Ghia

Location: Perth
WA, Australia

I don't know if this is the same sound or not but my auto EL gli made a humming sound when I was travelling 80+ and it was in 4th. I was going to get the auto serviced to see if that'd fix the sound but I ended up selling it. Does it happen to sound like vvvvvVVVVVvvvvvVVVVV (..lol)

 

_________________

EL Ghia

Top
 Profile  
 
 
 Post subject: Re: Strange humming sound between 85 - 100km/h
Posted: Tue Feb 14, 2012 5:07 am 
Stock as a Rock
Offline
User avatar

Posts: 124

Joined: 15th Jul 2011

Gallery: 7 images

Location: Sunshine Coast
QLD, Australia

TyLeR3397 wrote:
I don't know if this is the same sound or not but my auto EL gli made a humming sound when I was travelling 80+ and it was in 4th. I was going to get the auto serviced to see if that'd fix the sound but I ended up selling it. Does it happen to sound like vvvvvVVVVVvvvvvVVVVV (..lol)


yes it sounds just like that! I really don't know what it is
Top
 Profile  
 
 
 Post subject: Re: Strange humming sound between 85 - 100km/h
Posted: Tue Feb 14, 2012 6:50 am 
Technical Contributor
Offline
User avatar

Age: 28

Posts: 3705

Joined: 27th Sep 2006

Gallery: 20 images

Ride: ED Falcon

Power: 133 rwkw

Location: Leeton
NSW, Australia

Is it coming through the stereo? Could be the capacitor on the side of the coil... Is it just coming from the car? Could be the auto... When you're doing 100 and you have the hum, just try pulling it from d back to 3rd and if the noise goes away then you know it is top gear in the gear box (common problem, but it more just a bearing noise than hum, which I would associated more with electronics than mechanics)...

Cheers,
Tim

 

_________________

93 Red ED 5spd Manual Build Thread

Performance: Complete AUII VCT Wiring & Power Train, Pacey Headers, 2.5" Exhaust, Exedy Clutch, DBA Rotors
Visuals: FG XR Wheel, XR Front, 17's, BA 5 Spd Shifter, BA Ghia Window Switches, NL Cluster
Tunes: 8" Pioneer Sub, JBL Speakers, Clarion Double DIN Headunit

Top
 Profile  
 
 
 Post subject: Re: Strange humming sound between 85 - 100km/h
Posted: Tue Feb 14, 2012 9:27 am 
Getting Side Ways
Offline
User avatar

Posts: 1427

Joined: 21st May 2005

Location: Melbourne
VIC, Australia

It's sounds like something to do with the tailshaft, those speeds seem to be where most tailshaft hums occur.

Does it change at all if you back off the accelerator at those speeds?

Mine had a similar sound when I first lowered my car, it was caused by the bad diff pinion ange. That was fixed when I got the tickford arms to correct the angle.

That sort of sound can come from a few things. Uni joints, pinion angle, or the output bush.

 

_________________

EL Fairmont Ghia - Manual - Supercharged
- The Car
- The Headlights

Top
 Profile  
 
 
 Post subject: Re: Strange humming sound between 85 - 100km/h
Posted: Tue Feb 14, 2012 10:15 am 
Getting Side Ways
Offline
User avatar

Age: 39

Posts: 843

Joined: 20th Feb 2010

Gallery: 2 images

Ride: AU Fairmont Ghia

Location: Elizibif Norf (Local Spelling!!)
SA, Australia

Might pay to check your wheel bearings as well, my front drivers side is on its way out and is making a similar sound at about 80 - 90kph. Easy as to check, jack the wheel off the ground and give it a spin, if it's not spinning smoothly, you can feel or hear a grumbling sound, or you can move the wheel in and out any it needs replacing.
Mine is getting to the stage where I can feel it in the steering so once I get the new ones delivered they're going on. Best to replace both sides at the same time as replacing just one side will (in my experience) cause the other to fail within weeks :) Got both sides off E-bay for under $50 delivered.

 

_________________

dc_todd wrote:
Cheap pads squeal like cheap hookers, and you can take that to the bank.


Au Fairmont Ghia
My (Old) 95 EF Wagon

Top
 Profile  
 
 
 Post subject: Re: Strange humming sound between 85 - 100km/h
Posted: Tue Feb 14, 2012 6:43 pm 
Stock as a Rock
Offline
User avatar

Posts: 124

Joined: 15th Jul 2011

Gallery: 7 images

Location: Sunshine Coast
QLD, Australia

I just did my wheel bearings a couple of weeks back, it's certainly not them... It is definitely a mechanical sound not an electrical one.... The sound doesn't seem to be present if i drop it back to 3rd ... but that may just be because the sound of the engine is louder in 3rd and I may don't hear the humming over the revving... not sure...

I was thinking it could be drive shaft related? I have noticed if I change from reverse to drive (or vice versa) in quick succession something along the driveline make a LOUD bang/clunk sound... it doesn't always do this but it has done it a few different times when i've accidently changed from reverse to drive (or vice versa) while the car is still moving slightly or if i've accelerated a little while changing gear (I know thats bad but I've only done it on accident)

could this be related to the humming sound? like a uni link or something?
Top
 Profile  
 
Display posts from previous:
Sort by  
 Page 1 of 1  [ 7 posts ] 

Who is online

Users browsing this forum: No registered users and 16 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

 

 

It is currently Thu Dec 14, 2017 9:54 am All times are UTC + 11 hours

 

 

(c)2014 Total Web Solutions Australia - Australian Web Hosting and Domain Names