Very infrequent "Groan" from front? Driverside at speed.

[bass-o-matic]

2wd, 2002, 120k

I notice that totally randomly just going down the freeway at speed I get this "groan" or "moan" from where I can't tell.

Happens once in a blue moon. I was on an 8 hour trip and it did it twice. A one hour trip and it did it once. Going straight forward. Just chillin out. No turns. no bumps....

odd

 

[jgue467]

Bushings is all i can think of. If miles don't get them, time for certain will (it does everything else).

Enjoy that Runner, :cowboy:

 

[Bumbo]

Maybe wheel / hub bearings are on their way out?

 

[D'arce]

When I'm driving into a strong crosswind I randomly have a noise that almost sounds like one of the horns is halfway blowing. I haven't tracked it down yet, maybe a loose bumper or body panel vibrating in the perfect conditions...

 

[WWRD99]

Check your cross bars on the roof...they can vibrate in the wind.

 

[Zorrota]

If I'm driving in a crosswind over a certain speed the downwind front door whistles almost like a flute only much lower pitched. Probably not your problem because in mine the source of the noise is obvious but worth mentioning.
I have thought about trying to tighten the door against the body but haven't made the attempt yet.

 

[gamefreakgc]

I have that groan, except mine is much more frequent. I've chased it for 3 years now to no avail. It's not wheel bearings, or tires, or wheels or the rear driveshaft, or the engine... I suspect it's the front diff (rear diff bearings were shot and made noise) or the CV Axle.

However, like someone else said, they make noise. Every high mileage Toyota truck/4Runner I've owned had driveline vibrations or humming to some extent. Go out and enjoy it and know things will wear out, it's only a matter of time. But it's not going to explode on you.

 

[mtbtim]

It could be the front diff driver side needle bearing. An East Coast Gear Supply bushing might be your answer.
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