2002 Toyota 4 Runner whining noise in drive shaft area

30

Asked by Jul 12, 2013 at 04:03 PM about the 2002 Toyota 4Runner Limited 4WD

Question type: Maintenance & Repair

Whirling/whining noise from the rear drive shaft area at speeds between 25-50 mph.  Had a shop do an initial check and they used a stethoscope to determined that the noise was coming some place between the transfer box,  the rear drive shaft and the rear axle.  They ruled out the wheel bearings, engine and transmission.  They could not pin point the exact source because it seemed to travel the rear drive shaft.  They want $160 to pull our the drive shaft and determine the source.

Background:  noise started about 6 months ago and has not gotten worse.  The car has only been drive on paved roads, never abused, never used to tow anything and has not been in an accident.  It has 111,000 miles on it.
Any ideas as to what might be causing this issue?

7 Answers

2,745

when driving a steady speed, say 40mph, lightly press on the gas pedal and then let off, just enough to change speed a few miles per hour. If the noise changes pitch, you have a pinion bearing problem. If the noise doesn't change, then you have a lot more things to check. I am assuming they checked to make sure the fluids where full for the diff and transfer case right?

3 out of 3 people think this is helpful.
30

Thank for responding. They did check the fluids and they were normal. The sound does change pitch. I have been searching pinion bearing issues online. I came across a YouTube video of a guy driving in his jeep with a bad pinion bearing. My issue sounds just like that. (I made a video but not sure how to post to this thread. No link on my iPhone) I also saw another site where a test for a worn pinion bearing was that there would be play in the joint where the drive shaft meets the rear differential. "Here's what you do.....place in neutral. Crawl under and shake rear driveshaft while observing pinion yoke....any slight movement indicates a loose pinion nut and/or worn bearing." I tried this (in park) and did not feel any play. Is this still likely the pinion bearing?

1 out of 1 people think this is helpful.
22,445

A stethoscope on the differential housing at the pinion area will reveal that very quickly and easily. Pinion bearings are pre-loaded and should have a specific amount of torque required to turn them. Easy to hear and find in the air with a stethoscope. I would hope that they intended to do a lot more than just pull a drive shaft for $160! I'll bet you have bearings failing in the transfer case.

1 out of 1 people think this is helpful.
2,745

You won't feel play in the bearings, typically the bearings or bearing race simply get little pits in the metal and the bearing make noise when rotating across the pits. I would have the rear diff fluid drained and refilled, the diff has a plug at the bottom to drain the fluid out, very easy, and inspect the old fluid for any metal flakes, if it looks like it has "glitter" in it, or some silver tint, you have found your problem. on the other hand, I have never heard of a Toyota diff have any pinion bearing problems??

1 out of 1 people think this is helpful.
30

Had the truck at the shop today. They dropped the axle and determined the noise was from the xfer case. I have never had the xfer case oil changed (didnt know I had to change it) so we decided to change it. The old oil was very thin compared to the new oil. The noise is still there but not as noticable. Hopefully I have not damaged the xfer case too bad and it won't have to be replaced. What are the signs that I should be looking for that will tell me that the xfer case needs to be replaced and failure is imminate.

2 out of 2 people think this is helpful.
2,745

Unfortunately, if the xcase is still making noise after fluid change, failure is imminent, the case has bearing just like the diff, and one is probably going bad. The noise will get louder and louder, and eventually something inside will have to much play and will either seize up, lock up (my dads jeep wrangler xcase locked solid while on the highway and locked up the rear tires causing him to lose control and end up in the ditch) or you will hear a lot more noise than just the whine, like crunching or grinding. Either way, start saving :(

1 out of 1 people think this is helpful.
20

02 4runner sr5 4wd I'm having the same problem but i set my truck on jack stands and the noise is coming from the drive shaft i was told i hit something while going for it off road and bent it but i don't recall doing so. I'm changing it out soon for a used drive line. my current one is pretty rusted

2 out of 2 people think this is helpful.

Your Answer

Add photo

Related Questions

4Runner

Looking for a Used 4Runner in your area?

CarGurus has 20,329 nationwide 4Runner listings starting at $1,250.

ZIP:

Search Toyota 4Runner Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

Toyota 4Runner Experts

#1 Kurt Burton
Kurt Burton
Reputation 1,100
#2 azurro
azurro
Reputation 630
#3 kbro
kbro
Reputation 600
View All

Related Models For Sale

Used Toyota Tacoma
712 Great Deals out of 32,123 listings starting at $2,000
Used Toyota Highlander
641 Great Deals out of 22,077 listings starting at $2,000
Used Jeep Grand Cherokee
1,001 Great Deals out of 65,971 listings starting at $1,500
Used Toyota Tundra
644 Great Deals out of 27,763 listings starting at $3,200
Used Chevrolet Tahoe
852 Great Deals out of 28,370 listings starting at $1,700
Used Toyota RAV4
822 Great Deals out of 53,147 listings starting at $2,199
Used Toyota Land Cruiser
22 Great Deals out of 1,177 listings starting at $4,995
Used Toyota Sequoia
155 Great Deals out of 6,153 listings starting at $2,477
Used Honda Pilot
527 Great Deals out of 19,345 listings starting at $950
Used Ford Explorer
1,207 Great Deals out of 71,148 listings starting at $1,000
Used Ford F-150
3,217 Great Deals out of 205,088 listings starting at $1,779
Used Nissan Pathfinder
504 Great Deals out of 24,528 listings starting at $1,795
Used Jeep Wrangler
491 Great Deals out of 17,958 listings starting at $2,950
Used Toyota Camry
1,200 Great Deals out of 93,148 listings starting at $700

Used Cars For Sale

2017 Toyota 4Runner Limited 4WD For Sale
31 listings starting at $44,749
2016 Toyota 4Runner Limited 4WD For Sale
7 Great Deals out of 1,693 listings starting at $34,481
2015 Toyota 4Runner Limited 4WD For Sale
7 Great Deals out of 160 listings starting at $28,902
2014 Toyota 4Runner Limited 4WD For Sale
172 listings starting at $32,173
2013 Toyota 4Runner Limited 4WD For Sale
11 Great Deals out of 159 listings starting at $25,500