Help Please!!!!

[Beef52751]

I got a 99 Ranger extended cab stepside with a 3.0L and an auto transmission that is making a wierd howling noise. It has a 7.5" Rearend with 4.10 gears. I put new wheel bearings in but it didnt help much.(a little noise went away because they were bad too) What could be making this noise
Thanks for the help
Beef

 

[camma83]

where does it sound like its coming from? Front, rear, does the sound change on RPMS or MPH?

 

[Beef52751]

sounds like its coming from the middle of my truck on back.....not for sure exactly...but it changes with speed, especialy decelerating
Thanks

 

[4x4RangerGuy]

Get it up on jackstands and drive it, get it to like 35 mph. Have someone with a mechanic's stethoscope follow and listen to the howling. You should be able to pinpoint it this way.

Otherwise, you'll need to bring it to a shop and have them diagnose it.

 

[jrmustranger97]

Get it up on jackstands and drive it, get it to like 35 mph. Have someone with a mechanic's stethoscope follow and listen to the howling. You should be able to pinpoint it this way.

Otherwise, you'll need to bring it to a shop and have them diagnose it.

I don't recommend this to anyone. Tires have been known to explode when they are off the ground and under accleration. If you do try this do not accelerate the vehicle past idle. I personally know someone that almost lost their arm due to this very reason.

 

[86ford]

I don't recommend this to anyone. Tires have been known to explode when they are off the ground and under accleration. If you do try this do not accelerate the vehicle past idle. I personally know someone that almost lost their arm due to this very reason.

thats a new one on me.

86

 

[jrmustranger97]

thats a new one on me.

86

It sounds a crazy but I know of 2 seperate instances where this happened. The most notable was at the shop I used to work at.
The rear end of a truck was up in the air, and the truck was started, and the motor revved up and BAAAM. The left rear tire blew off like a cannon. The guy that rebuilt all of our transmissions happened to be walking by at the time and the schrapnel almost cut his arm clean off.

I'm not saying that it is a definite that this will happen, just that it is a possibility. Tires scare the crap out of me anyway. I've seen a few blow and they can be down right deadly.

 

[Insanejughead]

I got a 99 Ranger extended cab stepside with a 3.0L and an auto transmission that is making a wierd howling noise. It has a 7.5" Rearend with 4.10 gears. I put new wheel bearings in but it didnt help much.(a little noise went away because they were bad too) What could be making this noise
Thanks for the help
Beef

They're still using the 7.5" rearend... I thought they went to a standard 8.8"

 

[Mac]

I've got a '05' STX manual that still has the 7.5 in it. Maybe the ex. cab makes a difference? Lots of different options out there I guess. My other '05' (4x4) has the 8.8 but only has the 9" brakes when someone here said all the later 8.8's came with the 10" brakes. I wouldn't like to crawl under a truck running at 35 mph for any reason.
Dave

 

[almostclueless]

In taxachusetts, even the tires are snobby lol

 

[Jspafford]

They're still using the 7.5" rearend... I thought they went to a standard 8.8"

Nah, only on the 4.0's

 

[Insanejughead]

Nah, only on the 4.0's

That still doesn't explain much. My '94 single cab came with a 2.3 and it has the 8.8"


Unsolved mystery sounds like...

 

[jrmustranger97]

In taxachusetts, even the tires are snobby lol

Don't ya know it!

 

[alaskan155]

wierd about the exploding thing, dont they spin the tire up on a wheel balancer??? thought they spind it up to 50 or 70 mph or something like that.

 

[Insanejughead]

wierd about the exploding thing, dont they spin the tire up on a wheel balancer??? thought they spind it up to 50 or 70 mph or something like that.

Nah, wheel balancers only turn the wheel about 10 to 15 rotations. So it never really goes faster than 10-15 mph.