If I were a...
Thread Starter
|
New User
Joined: Feb 2004
Posts: 24
Likes: 0
From: Oregon
If I were a...
If I were a bad front wheel bearing on a 1994 Aerostar 4.0 A4wd w/ 101,000K what would I sound like?
Im noticing that recently my Aerostar is making a howling sounds (sounds like wind gusts). Does not change with increasing/decreasing RPMs and is loudest around 20-40 mph then is not as noticable at highway speeds. Seems to be coming from frond left hand side of vehical and does not cause any vibration.
...any suggestions??
Im noticing that recently my Aerostar is making a howling sounds (sounds like wind gusts). Does not change with increasing/decreasing RPMs and is loudest around 20-40 mph then is not as noticable at highway speeds. Seems to be coming from frond left hand side of vehical and does not cause any vibration.
...any suggestions??
Posting Guru
Joined: Jul 2004
Posts: 2,416
Likes: 1
From: Mitchell, SD
To me it does not sound like a wheel bearing.
Sounds more like a vacuum leak or exhaust leak.
I would crawl under and take a look at the exhaust (for holes, possible clogged cat), cv joints, ball joints.
If you feel real inspired I would jack it up and try push/pull the tires at 3 and 10 O'clock then at 12 and 6. At that age suspension components do tend to wear out.
Sorry for not being more help, hard to diagnoss a "houl" noise.
Sounds more like a vacuum leak or exhaust leak.
I would crawl under and take a look at the exhaust (for holes, possible clogged cat), cv joints, ball joints.
If you feel real inspired I would jack it up and try push/pull the tires at 3 and 10 O'clock then at 12 and 6. At that age suspension components do tend to wear out.
Sorry for not being more help, hard to diagnoss a "houl" noise.
Postmaster
Joined: Apr 2001
Posts: 3,818
Likes: 3
I would agree with 93nighthawk, a possible vacuum leak and in agreement that the atypical sounds you describe are hard to pin down. My first thought was perhaps a failing fan clutch. As it cuts in and out, it can produce rather loud, air rush sounds. Other possibilities would be "moosing" (moose call noises) from the IAC valve, although this is rare on 4.0 Aerostars and more common on other Ford applications. I would put a worn bearing further down the list of possible causes at this point.
Elder User
Joined: Apr 2005
Posts: 882
Likes: 0
From: Wichita
Originally Posted by AKSTAR
If I were a bad front wheel bearing on a 1994 Aerostar 4.0 A4wd w/ 101,000K what would I sound like?
Im noticing that recently my Aerostar is making a howling sounds (sounds like wind gusts). Does not change with increasing/decreasing RPMs and is loudest around 20-40 mph then is not as noticable at highway speeds. Seems to be coming from frond left hand side of vehical and does not cause any vibration.
...any suggestions??
Im noticing that recently my Aerostar is making a howling sounds (sounds like wind gusts). Does not change with increasing/decreasing RPMs and is loudest around 20-40 mph then is not as noticable at highway speeds. Seems to be coming from frond left hand side of vehical and does not cause any vibration.
...any suggestions??
My experience is that a bearing will growl more noticeably at lower wheel speed than higher. It might help to raise the front end and spin both tires. I'm guessing one will be louder.
If it is a bearing, don't wait too long to fix it. You may end up stranded somewhere. I think your AWD has transaxles or somthing up front.
Lead Driver
Joined: May 2003
Posts: 9,303
Likes: 48
From: Lyndonville, Vermont
To test for a bad wheel bearing you do about 40 mph and turn the wheel and put weight on one side then the other. The bad bearing will make more noise when there's more weight on it.
Dick
Dick
Posting Guru
Joined: Jun 1999
Posts: 1,642
Likes: 6
From: Northern California
Everytime I read this subject topic, the complete song of "IF I Had A Hammer" by Peter, Paul and Mary pop into my mind, from this early 60's era folk band! Then, it's stuck in my mind all day and night!! Ed (I'm not kidding!)
Trending Topics
Post Fiend
Joined: Oct 2005
Posts: 5,242
Likes: 0
From: Kiev, Ukraine
May be it will be a good idea, to use a jack, and rotate wheel by hand, and to hear this sound... May be brake pads, or tires... Look at the front suspension carefully...
There is another way: do nothing and wait for result... There are 2 probable results, this sound may dissapeare, ore something will be cracked... So the sourse of the sound will be found! Just kidding!
There is another way: do nothing and wait for result... There are 2 probable results, this sound may dissapeare, ore something will be cracked... So the sourse of the sound will be found! Just kidding!
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
Lead Driver
Joined: May 2003
Posts: 9,303
Likes: 48
From: Lyndonville, Vermont
You can take a bearing out that make noise and turn it and never know it was bad. I've replaced maybe 10 bearings that you could just hear that they were going bad at 40 mph and faster any other test and you have to wait till they really wear out..
Dick
Dick
Post Fiend
Joined: Oct 2005
Posts: 5,242
Likes: 0
From: Kiev, Ukraine
Yeah! Sometimes it is really difficult to find a problem, but the sound of going bad bearing is so special. But often bad bearings are hot after 40-60 mph ride. And I guess, it will be a good idea to check its ajusting and lubrication...
Post Fiend
Joined: Oct 2005
Posts: 5,242
Likes: 0
From: Kiev, Ukraine
I have 2WD model, but I heard about such problemes, my friend has Bronco-II and he recovered his front hub units changing bearings and some other parts inside... He said, there is no difference with UAZ SUVs, and it is easy to rebuild it, if you are not afraid to be in dirt... So I will ask him tomorrow how to diagnose and to fix it...