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Subaru B9 Tribeca Transmisson Issues

66 messages,  Last post on Nov 08, 2009 at 10:55 AM

You are in the Subaru B9 Tribeca Maintenance & Repair Forum. Your Host is kcram

What is this discussion about? Subaru B9 Tribeca, Transmission, SUV


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#22 of 66
Re: Lost power [mikejl] by ateixeira
Sep 12, 2007 (7:10 am)
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Replying to: mikejl (Sep 12, 2007 4:42 am)

Maybe they turn off the fuel pump if they "sense" the tank is empty, and that sensor is failing?
 
Just speculating as to the cause.
#23 of 66
Re: Lost power [ateixeira] by mikejl
Sep 12, 2007 (10:08 am)
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Replying to: ateixeira (Sep 12, 2007 7:10 am)

This will probably be a tough problem to truly diagnose. All I have is speculation, too, and I could be totally off base.
 
I think I would have had this problem more often, or at least sooner after the first time, if it was a failing sensor. (I'm speculating again.) I'm thinking it is a sensor that is poorly positioned, due either to poor design or an assembly error on my particular vehicle. Probably the latter.
 
There is no way to verify that, short of a more drastic repair action than I want have done at this point. If it happens again, and I have been successful in keeping more gas in the tank, I might have to have it thoroughly checked out.
#25 of 66
Humming noise at 29mph by dbarlow
Nov 24, 2006 (4:45 pm)
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In mild or warm weather I get a loud hum from what sounds like the front left at exactly 29mph. Anybody else have the problem...and more importantly found a dealer that can find it and fix it?
#26 of 66
Re: Humming noise at 29mph [dbarlow] by ateixeira
Nov 25, 2006 (6:34 am)
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Replying to: dbarlow (Nov 24, 2006 4:45 pm)

Give us more details... this is a Tribeca, right? What year?
 
Does it happen while coasting, or only when you're on the gas?
 
I would lube the sway bars first, because that's so easy. My guess is it would be wheel bearings or something in the suspension that is just resonating at a frequency that causes that noise.
 
-juice
#27 of 66
Re: Humming noise at 29mph [ateixeira] by dbarlow
Nov 25, 2006 (7:13 am)
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Replying to: ateixeira (Nov 25, 2006 6:34 am)

I agree it sounds most likely like a bearing. Here are the particulars:
 
2006 B9 Tribeca 7 psgr. Outside temp needs to be between 45 and 75. If is colder or warmer it goes away or is very faint. Sometimes you can hear it at other speeds but it is at it's loudest at exactly 29mph. VERY loud sometimes. Sometimes it goes away when I drive it for a while and it warms up. But then it could come back at any time. Of course when I take it to the dealer they never hear anything...except one time when I insisted on taking one of them for a drive. They put it up on the rack and ran the wheels while listening with a scope...but heard nothing. Which tells me it needs a load on the tires. The noise happens both when coasting and when hitting the gas. Nothing to do with the brakes either as I have heard it when hitting the brakes and when not. Dry roads or wet so it isn't the tires.
#28 of 66
Re: Humming noise at 29mph [dbarlow] by ateixeira
Nov 25, 2006 (2:35 pm)
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Replying to: dbarlow (Nov 25, 2006 7:13 am)

It's gotta be the bearings, then. What else changes under load like that?
 
The noise should get progressively worse, but see if they'll replace them pre-emptively.
 
-juice
#29 of 66
Also by paisan
Nov 26, 2006 (1:48 am)
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If it's not the bearings, it could be a loose bearing nut. I had this issue on the race car. We thought the bearing was bad so we stopped running it (it was the end of the 2nd day of a 2-day event) Didn't get around to pulling the hubs until a few weeks ago and found out that one of the nuts needed a 1/2 a turn and the noise went away.
 
-mike
#30 of 66
Re: Humming noise at 29mph [dbarlow] by aka1
Dec 03, 2006 (9:00 pm)
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Replying to: dbarlow (Nov 24, 2006 4:45 pm)

When I first read the post- I too suspected the bearing and thought it was an unusually defective one. However, a friend in a 2006 330xi had identical symptoms- the dealership replaced the tire and the noise was quelled.
 
Please have tires rotated- the noise should then dissipate. Dealership will point you to a Goodyear dealer to have it replaced.
#31 of 66
Re: Humming noise at 29mph [aka1] by wishman68
Mar 20, 2007 (10:50 am)
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Replying to: aka1 (Dec 03, 2006 9:00 pm)

Hi All,
We had a similiar issue with our new Tribeca 07. Picked it up 2 weekend ago and noticed a slight shimmy in the front. Finally took it to the dealer today to have a remote start put in and ask them to check the shimmy. Just got the call, the belt on the tire has shifted and Tire Rack will handle the warranty. It's a bit disconcerting since it's a new car. Got the car with 12 miles. So far the wife loves it and that's what matters.

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