1. Welcome to 4Runners.com!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all 4Runner discussion topics
    • Transfer over your build thread from a different forum to this one
    • Communicate privately with other 4Runner owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

Wah wah noise?

Discussion in '3rd Gen 4Runners (1996-2002)' started by jsp, Feb 23, 2020.

  1. Feb 23, 2020 at 3:52 PM
    #1
    jsp

    jsp [OP] New Member

    Joined:
    Feb 23, 2020
    Member:
    #13263
    Messages:
    4
    Gender:
    Male
    First Name:
    John
    Vehicle:
    1998 4Runner 5 speed
    none
    Greetings, I just signed up for the forum. I have a 98 4Runner manual 5 speed with about 170,000 miles. Lately, I have noticed a low-pitched noise on acceleration, and easiest to hear at low speeds and present when accelerating in 1st and 2nd (and probably all gears, tho' not as easy to hear at high speeds). Initially, I suspected a wheel bearing. But, the noise is only present when under load and it goes away when coasting or decelerating, so I expect it is instead coming from the transmission or other parts of the drive train. I checked the driveshafts and they feels tight (no slop in the bearings). I read about the dreaded rumbling noise at 30-40 mph that is a problem with some 4Runners, but these seem to be all automatic transmissions.

    Anyone else with a manual 5-speed seen this
     
  2. Feb 23, 2020 at 3:54 PM
    #2
    SlvrSlug

    SlvrSlug New Member

    Joined:
    Jun 3, 2018
    Member:
    #6172
    Messages:
    3,483
    Gender:
    Male
    First Name:
    John
    San Diego, Ca.
    Vehicle:
    2017 4-Runner SR-5
    Slightly modded
    Welcome.
     
  3. Feb 23, 2020 at 3:54 PM
    #3
    jsp

    jsp [OP] New Member

    Joined:
    Feb 23, 2020
    Member:
    #13263
    Messages:
    4
    Gender:
    Male
    First Name:
    John
    Vehicle:
    1998 4Runner 5 speed
    none
    Following up.. .forgot to mention, it sounds light a low-pitched "wah-wah-wah-wah...." Almost like something that is out of round, but no associated vibration, at least none that you can feel, just the sound.
     
  4. Feb 23, 2020 at 4:28 PM
    #4
    NightOwl

    NightOwl 1985 Toyota 4 Runner DLX 22REC

    Joined:
    Aug 29, 2019
    Member:
    #11070
    Messages:
    172
    Gender:
    Male
    First Name:
    Amos
    Ballwin, MO
    Vehicle:
    1985 Toyota 4 Runner DLX
    LCE header, 2.5 inch exhaust, 31x 10.50 BF Goodrich, 15 X 8 aluminum wheels, Bilstein Shocks, 3 inch lift kit, 3M fender flares
    I am thinking rear axial bearing...but I will tell you I had a weird noise that sounded like a tail shaft bearing on my W-56 manual transmission and what I found was one of my starter bolts was loose...just slightly and it made a consistent noise at 2500 RPM...just a fluke that I found it. Is your noise at a specific RPM?
     
  5. Feb 23, 2020 at 5:37 PM
    #5
    jsp

    jsp [OP] New Member

    Joined:
    Feb 23, 2020
    Member:
    #13263
    Messages:
    4
    Gender:
    Male
    First Name:
    John
    Vehicle:
    1998 4Runner 5 speed
    none
    Thanks NightOwl. It is not associated with any particular RPM. In fact, it stops when I push in the clutch or put it in neutral. Only there when under load (e.g., accelerating from a stop.)
     
  6. Apr 13, 2020 at 9:06 AM
    #6
    DesertRoads

    DesertRoads New Member

    Joined:
    Apr 11, 2020
    Member:
    #13832
    Messages:
    27
    Gender:
    Male
    Utah
    Vehicle:
    Silver '99 4Runner Limited
    HVAC tape over the holes in the glass headlights
    Sounds like a driveline issue. Since you said the noise stops after you push in your clutch, it could be something with the gearing. Might want to inspect, and change if needed your fluids.
     
  7. Apr 22, 2020 at 4:00 AM
    #7
    captsolo

    captsolo New Member

    Joined:
    Jun 2, 2019
    Member:
    #10131
    Messages:
    199
    Gender:
    Male
    First Name:
    Tom
    nassau bahamas
    Vehicle:
    2005 SR5
    Drain and Fill 5 quarts of transmission fluid using only Toyota brand.

    2005 SR5 V6 (no off road) 150,000 miles / AISIN Automatic transmission. Still shifts like when I bought it brand new. no slip. No hesitation

    Could be one of your front wheel bearings. They go out around 150,000 miles. Cause noise.

    Check it out at Alignment shop. Buy whole hub assembly not just the bearing. Big job to replace just bearing. https://www.amazon.com/4110446-Bear...ly+4runner&qid=1587553477&s=automotive&sr=1-7

    Has your 5 speed transmission ever been serviced?
     
    Last edited: Apr 22, 2020
  8. Apr 22, 2020 at 7:37 AM
    #8
    negusm

    negusm New Member

    Joined:
    Oct 22, 2019
    Member:
    #11745
    Messages:
    323
    Gender:
    Male
    Vehicle:
    2002 4Runner SR5 4WD
    3rd gen doesn't have that assembly. You have to do the actual bearings. The 3rd gens last 250k-500k miles.

    Also...I recommend only buy Toyota bearings. $80 for a bearing assembly is not something I would touch. It's too important a part.
     
  9. Jun 1, 2020 at 12:06 PM
    #9
    jsp

    jsp [OP] New Member

    Joined:
    Feb 23, 2020
    Member:
    #13263
    Messages:
    4
    Gender:
    Male
    First Name:
    John
    Vehicle:
    1998 4Runner 5 speed
    none
    Thanks for the replies. Good to know about the bearings. That was my first thought... but, because the noise goes away when the clutch is pushed in, I also am thinking a driveline issue. Figuring on a trip to my local transmission shop to see what they think.
     

Products Discussed in

To Top