Fordmods Logo

What would make an auto hum at 75 to 90kmh? 

 

Page 1 of 2 [ 25 posts ] Go to page 1, 2  Next

 
 Post subject: What would make an auto hum at 75 to 90kmh?
Posted: Fri Jul 21, 2006 1:28 am 
Getting Side Ways
Offline
User avatar

Age: 48

Posts: 2537

Joined: 5th Nov 2004

Gallery: 13 images

Ride: EFII Fairmont

Location: Perth
WA, Australia

Mine does this, it hums up and down in low pitch, with cruise set at 80kmh. Sounds like a truck.
I remember a few years ago when I had just gotten the car, going up this very steep road, and I had a play around with the auto by manually selecting a lower gear, and she went BANG in the drive-line, followed by a kind of faint burning smell a few minutes later.
Thing is I have an external cooler, and the auto hasn't been a problem except for a few shavings last oil change, and that hum in the auto at 80kmh. Did I do something to it on the hill going up to the Macedon Cross, what would have been damaged do you think?
Top
 Profile  
 
 
Posted: Fri Jul 21, 2006 1:56 am 
Getting Side Ways
Offline
User avatar

Age: 33

Posts: 832

Joined: 5th Nov 2004

Gallery: 7 images

Ride: EL Fairmont

Location: Brisbane
QLD, Australia

dude i know has this, but it also hums at any speed the engine is on light throttle around 1800rpm. He has a noisy torque converter. it hums at stall speed, but nowhere else. its very odd

 

_________________

too many rabbits in china

Top
 Profile  
 
 
Posted: Fri Jul 21, 2006 2:45 am 
Getting Side Ways
Offline
User avatar

Age: 48

Posts: 2537

Joined: 5th Nov 2004

Gallery: 13 images

Ride: EFII Fairmont

Location: Perth
WA, Australia

Sounds like it. Wonder what I've done to the torque converter to make this happen. Would it be expensive to fix do you know?
Top
 Profile  
 
 
Posted: Fri Jul 21, 2006 3:05 am 
Getting Side Ways
Offline

Posts: 3516

Joined: 8th Nov 2004

[self-deleted]

Last edited by blackjack_original on Fri Jun 06, 2014 9:45 pm, edited 1 time in total.

Top
 Profile  
 
 
Posted: Fri Jul 21, 2006 9:27 am 
Getting Side Ways
Offline

Posts: 3025

Joined: 28th Oct 2005

Gallery: 13 images

Ride: BA MKII XR8

Location: Caroline Springs
VIC, Australia

What would make an auto hum at 75 to 90kmh?

Maybe you're playing some good music that it likes to hum along too....
Top
 Profile  
 
 
Posted: Fri Jul 21, 2006 6:13 pm 
Getting Side Ways
Offline
User avatar

Age: 52

Posts: 4370

Joined: 5th Nov 2004

Ride: BA Fairlane Ghia

Location: Karratha
WA, Australia

Could be the planetary gear.
Top
 Profile  
 
 
Posted: Fri Jul 21, 2006 7:26 pm 
Getting Side Ways
Offline
User avatar

Age: 48

Posts: 2537

Joined: 5th Nov 2004

Gallery: 13 images

Ride: EFII Fairmont

Location: Perth
WA, Australia

I have no idea. I gave it to a transmission place for a test drive, and all I saw in his eyes were dollar signs, glazed over like. He hinted that he'd go through the whole drive-line to try and find out what it is, pull this apart, pull that apart, look in here, look in there. But I don't think this is a particular hard problem to trace, IMO of course. I mean what else is there that would make a noise like that. Diff and wheel bearings are new?
Top
 Profile  
 
 
Posted: Sun Jul 23, 2006 11:31 pm 
Oompa Loompa
Offline

Posts: 42

Joined: 27th Jun 2006

Gallery: 2 images

Ride: ef falcon

Location: hervey bay
QLD, Australia

i have the same problem with mine but it is only just noticeable. mine is herd at about 1400 rpm in fourth gear and at first i thought it was the tyres just making the noise. my gear box is also changing into gears fairly hard at about 2300rpm but smoother when giving it a bit more gas... can anyone help me with these two problems
Top
 Profile  
 
 
Posted: Mon Jul 24, 2006 12:33 am 
Parts Gopher
Offline

Age: 31

Posts: 73

Joined: 7th Nov 2004

Ride: EF Farimont

Location: Canberra
NSW, Australia

is the car lowered. heaps of e series humm after they are lowered due to the pinion angle

 

_________________

1997 Ford EL Fairmont
Blue Dash Mod
Red LCD mod
Full Alpine Sterio
Pedders Super Low Sports Rider Suspension
CSA avenger 17x8 (235/45 front) (255/40 Rear)
DBA slotted Rotors (front & Back)
EBC Greenstuff pads (front & Back)

Top
 Profile  
 
 
Posted: Mon Jul 24, 2006 5:13 am 
Getting Side Ways
Offline
User avatar

Age: 48

Posts: 2537

Joined: 5th Nov 2004

Gallery: 13 images

Ride: EFII Fairmont

Location: Perth
WA, Australia

Mines not lowered but sits pretty high in the back, lower in the front. Might have to get some new shocks and springs and ask them to bring the rear down and make it level.
Top
 Profile  
 
 
Posted: Mon Jul 24, 2006 2:13 pm 
Getting Side Ways
Offline
User avatar

Age: 43

Posts: 2705

Joined: 6th Nov 2004

Gallery: 11 images

Ride: 2009 FG XR6 Sedan

Location: Melbourne
VIC, Australia

Ive heard that the autos on the e series are renowned for a noisy converter during lock-up (4th gear)
Top
 Profile  
 
 
Posted: Mon Jul 24, 2006 2:26 pm 
Getting Side Ways
Offline
User avatar

Age: 48

Posts: 2537

Joined: 5th Nov 2004

Gallery: 13 images

Ride: EFII Fairmont

Location: Perth
WA, Australia

Nah this is far from normal. My sisters EL is as quiet as anything. What I've got is a droning hum in 4th while cruising at that speed. Hums up and down slowly in pitch, like a loose gear or something is moving up and down on it's shaft. Then when I switch the cruise control off and let it slow, the hum goes, but you can just hear a thrumming or dull drumming sound from that area in the auto as the car slows down. Like something is out of alignment, or buckled slightly or something like that.

It's exactly the same sound a manual makes when you select a gear thats too high for your current speed. Like you select 3rd when you should be in 2nd.
Mines especially bad when going up hill, that humming gets louder as if the gear that it's in is too high for it. Even though your doing 75 in 4th, the heavier the loading, louder that hum.
Top
 Profile  
 
 
Posted: Mon Jul 24, 2006 2:42 pm 
Getting Side Ways
Offline
User avatar

Age: 36

Posts: 8655

Joined: 5th Nov 2004

Gallery: 37 images

Ride: V8 EF Futura

Location: Adelaide CBD
SA, Australia

Does the noise persist when you remove all thorrtle application? Or when you're accelerating briskly in 3rd/4th... or is it only when cruising? And does it do it in 3rd at all?

 

_________________

I promise..... I will never die.

Fordmods Administration Group MINOR PUNKED

Top
 Profile  
 
 
Posted: Mon Jul 24, 2006 2:49 pm 
Getting Side Ways
Offline
User avatar

Age: 48

Posts: 2537

Joined: 5th Nov 2004

Gallery: 13 images

Ride: EFII Fairmont

Location: Perth
WA, Australia

4.9 EF Futura wrote:
Does the noise persist when you remove all thorrtle application? Or when you're accelerating briskly in 3rd/4th... or is it only when cruising? And does it do it in 3rd at all?


Goes away when I go off throttle, but replaced with a faint drumming kind of sound as the car slows a bit.
Not in 3rd, only in 4th, loudest between 75kmh and 90kmh.
Top
 Profile  
 
 
Posted: Mon Jul 24, 2006 3:21 pm 
Getting Side Ways
Offline

Posts: 404

Joined: 8th Jun 2006

Location: melbourne
VIC, Australia

These problems could be due to a shot rear transmission mount. This will give a clunk when kicking down.
Top
 Profile  
 
Display posts from previous:
Sort by  
 Page 1 of 2  [ 25 posts ]  Go to page 1, 2  Next

Who is online

Users browsing this forum: No registered users and 10 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 Fri Dec 15, 2017 8:36 am All times are UTC + 11 hours

 

 

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