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Road noise at 35 to 55 lost for answers

  #1  
Old 02-10-2019
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Road noise at 35 to 55 lost for answers

I have a 2000 Ranger 4 door access cab. 3.0 auto. Replaced wheel bearings with amazon $50 jobbies. Control arms, ball joints, sway bar end links, rotors and pads. Still does the same humming noise. No grinding but sounds like a bad wheel bearing but constant. Doesnt go away or get worse by turning. Not the tires because I put the winter tires on and it is still doing it. No steering wheel shake, pull or rattle. I am lost. Maybe still shittiy wheel bearings?? But those are are not showing the typical signs of being bad. Transaxle is full, fluid looks good and no leaks.
 
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Old 02-11-2019
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Welcome to the forum

Rear axle?

Also don't discount air flow noise, have you changed anything under or around the vehicle, since you started noticing the noise
 
  #3  
Old 02-11-2019
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Definitely not in the rear of the vehicle. Definitely not a airflow issue. And no, havent changed anything to warrant the sound via airflow. Bought the truck like this and have had it for 7 months and still dont dare to drive it more then 10 miles away.


Originally Posted by RonD View Post
Welcome to the forum

Rear axle?

Also don't discount air flow noise, have you changed anything under or around the vehicle, since you started noticing the noise
 
  #4  
Old 02-11-2019
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Does the noise change when you shift it into Neutral and coast downhill?
 
  #5  
Old 02-11-2019
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No change in noise in neutral or even when you apply the brakes, has yo be in the rolling assembly somewhere.


Originally Posted by RonD View Post
Does the noise change when you shift it into Neutral and coast downhill?
 
  #6  
Old 02-12-2019
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This may be a longshot, but hey.

2000 4x4?

Maybe the pulse vacuum hubs aren't disengaging?

Just dragging those gears along for the ride?

If it's not a 4x...

Alignment?

Another longshot, but...

Is it possible to get video?
 
  #7  
Old 02-13-2019
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Yes 4x4, no to vaccume hubs. Tried to get video but the sound isnt really present. If the 4x4 was still engaged it would be unhappy on dry pavement so that's a no go.. really dont thint it is an alignment issue, zero pull or vibration with it.
 
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Old 02-13-2019
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Originally Posted by Neongtrfan View Post
Yes 4x4, no to vaccume hubs.
Manual Hubs ? are you sure they are unlocking ?

With the front hubs locked you can still drive and not notice except possible noise and vibration. As long as the transfer case is in 2 wheel drive, you can drive like that all the time.

If I plan on going off road I always locked my hubs in at home so I didn't have to get out and lock them once I hit the trails, drove to trails in 2 high, hit the trail and shift into 4 high or 4 low depending on the trail.
 
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Old 02-13-2019
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Originally Posted by Neongtrfan View Post
If the 4x4 was still engaged it would be unhappy on dry pavement so that's a no go..
I meant if the transfer case was in 2wd, and the PVHs were acting up and not disengaging.

I was thinking if that were the case, maybe pulling the cover off your front diff and start checking for shavings...shaking things.



 
  #10  
Old 02-13-2019
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May be on to something here... I have shift on the fly 4x4. Just turn the dial. 90% sure they are not engaged. When they are you definitely feel it. 3.0. Mechanic said the fluid looked great and no play anywhere.


Originally Posted by 2011Supercab View Post
Manual Hubs ? are you sure they are unlocking ?

With the front hubs locked you can still drive and not notice except possible noise and vibration. As long as the transfer case is in 2 wheel drive, you can drive like that all the time.

If I plan on going off road I always locked my hubs in at home so I didn't have to get out and lock them once I hit the trails, drove to trails in 2 high, hit the trail and shift into 4 high or 4 low depending on the trail.
 
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Old 02-13-2019
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"Shift on the fly" doesn't work unless you leave Manual hubs locked, which is fine to do, that's how 2001 and up Ranger come from the factory, always locked front hubs, Live Axle

Anyway, unlock the manual hubs and have transfer case in 2WD
Have someone move truck forward(or back) while you watch front drive shaft, it should NOT move, if it does then one of the hubs is not unlocked
 
  #12  
Old 02-13-2019
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Not manual hubs
 
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Old 02-13-2019
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Originally Posted by Neongtrfan View Post
Not manual hubs

Not vaccume not manual
 
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Old 02-13-2019
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Originally Posted by RonD View Post
"Shift on the fly" doesn't work unless you leave Manual hubs locked, which is fine to do, that's how 2001 and up Ranger come from the factory, always locked front hubs, Live Axle

Anyway, unlock the manual hubs and have transfer case in 2WD
Have someone move truck forward(or back) while you watch front drive shaft, it should NOT move, if it does then one of the hubs is not unlocked

Def6not vacuum
 
  #15  
Old 02-13-2019
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Some 2000 Ranger 4x4s did come with Live axle from the factory, you can not convert PVH to live axle without swapping out the whole front axle.

The larger picture is a Live axle, easy to tell by the large 33mm nut

Next smaller picture is the PVH, black cap with hub locks under it

The comment under it seems to suggest you can just change hubs for this conversion, you can't
 
  #16  
Old 02-13-2019
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Originally Posted by Neongtrfan View Post

Def6not vacuum
the first picture is of my truck. No locking hub, no vac
 
  #17  
Old 02-13-2019
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Originally Posted by RonD View Post
Some 2000 Ranger 4x4s did come with Live axle from the factory, you can not convert PVH to live axle without swapping out the whole front axle.

The larger picture is a Live axle, easy to tell by the large 33mm nut

Next smaller picture is the PVH, black cap with hub locks under it

The comment under it seems to suggest you can just change hubs for this conversion, you can't
I just screen shotted that to show that mine is not that.
 
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