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#19044 of 19336 2001 Forester - Stalls Out When Cold and Braking
Apr 15, 2011 (12:04 pm)
My wife drives a 2001 Subaru Forester with 185,000 miles on it. For the last few months, the car will stall out if she has to brake moderately or heavily when the car has not been running for very long. Once the car is warmed up a little (not even all the way to the regular operating temp) it will no longer stall at all. It only does this during the first few minutes after it is started.
We have replaced plugs, plug wires, fuel filter recently. We also had both catalytic coverters replaced not too long ago due to a check engine problem.
Anyone have any idea what could be causing this?
#19045 of 19336 Re: Trans diff clutch & seal kit? [hammerhead]
Apr 15, 2011 (11:53 am)
Nope, no connection to turning... I can hear right after the car has started or later, going straight or turning.
I would say that the constant noise is medium pitched. Like a WWII bomber. But it does change pitch a bit with speed.
#19046 of 19336 Re: 2001 Forester - Stalls Out When Cold and Braking [compensate]
Apr 15, 2011 (12:00 pm)
Are you able to confirm there are no vacuum leaks around the power brake booster?
#19047 of 19336 Re: 2001 Forester - Stalls Out When Cold and Braking [samm43]
Apr 15, 2011 (12:05 pm)
I can't say that I know what a power brake booster is. Is that around the master cylinder?
#19049 of 19336 Re: 2001 Forester - Stalls Out When Cold and Braking [colin_l]
Apr 15, 2011 (1:26 pm)
Thanks so much. I will give that a try.
#19050 of 19336 Re: Trans diff clutch & seal kit? [daniell]
Apr 15, 2011 (2:38 pm)
Sadly, it could be a differential. The car has more than one, though, so it would be good to isolate the sound as either rear or front/center (I'm not sure that those two are located far enough apart that you could distinguish one from the other). Rear differentials are not terribly expensive or difficult to replace; front or center differentials are a completely different animal.
Actually, "trans diff clutch & seal kit" could be translated on this basis: the front and center differentials share a housing with the transmission (front is located fore of the transmission and center differential is aft), the center differential uses a series of clutch plates to regulate power to the front and rear axles, and you'd want to replace the seals that isolate the differentials from the transmission as long as you're in there doing work.
I'm guessing the shop feels there is a problem with the center differential, though I'm surprised it was not discussed with you. I would go back to them and ask for an explanation of the diagnosis (in plain English).
#19051 of 19336 Re: Trans diff clutch & seal kit? [xwesx]
Apr 15, 2011 (2:59 pm)
Thank you for the detailed answer.
The mechanic said something about power not going to the rear wheels (which would point to a center differential problem, indeed). Also said that if it doesn't get fixed, it will ruin the transmission.
Here is the list of parts for the repairs:
- wheel bearing $127.03
- hub $129.55
- trans diff clutch & seal kit $260 (NIS)
- 6 ATF $52.00
- long rear control arm bolt and nut $36.00
The 6 ATF quarts also would point to something related to transmission or a part that connects to the transmission.
#19052 of 19336 Re: Trans diff clutch & seal kit? [daniell]
Apr 15, 2011 (3:03 pm)
Those are expensive parts. You can get Timken wheel bearings from Auto Zone that cost less. And Timken is an excellent wheel bearing manufacturer. I have replace a wheel bearing on my wife's 2001 Forester and used the Timken bearing. I think it was about $55.
#19053 of 19336 Re: Trans diff clutch & seal kit? [compensate]
Apr 15, 2011 (3:51 pm)
2x retail/autoparts store cost is not unusual for dealerships. However, you rarely can "carry in" your own part.