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Old 03-02-2021, 12:05 AM   #1
aidanmurphy
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Default Turbo blown? Crazy coincidence or cause and effect..?

2009 Subaru WRX with 155k miles. Bone stock other than some aftermarket exhaust from the downpipe back and also a BOV I have been meaning to swap out for a BPV.

Been a rough couple of weeks. Radiator cracked, replaced that and did brakes. First test drive with the new brakes not even getting past 3500RPM and I get the CEL coming on.. P0011.

Limp the car home and go right to researching. Did not like what I saw.. figured the first plan of attack is do a simple oil change and see if the codes come back. So I change the oil and clear the codes. Oil was a little bit low (quart or so) and not as clean as it could have been, been about 4000 miles since last change. I drove the car about 40 minutes the next day (20 to store and 20 back) and the codes didn't come back. I was being careful not to push the car too hard but it still felt down on power, wanting to stall at low speeds when taking off from stoplight. Realized that there was a lot of white / blue smoke coming from my exhaust at idle.. Oh no, turbo.

I decide to check the passenger side OCV. I pulled it out and it actually broke in half (probably my doing from beating it out with a hammer) but the actual slide mechanism felt smooth and not sticky. Have another one on order.

I then pull the turbo and that banjo bolt filter everyone said blew up their turbo and it actually did not look too bad. So I pulled the passenger AVCS banjo bolt and there is not even a filter in there.. I figured well that kind of sucks because now I am wondering what killed my turbo?

Could it have been a malfunctioning OCV that lead to the excessive smoking and my turbo just so happened to be going out at the same time? I pulled the turbo and noticed some shaft play in and out and side to side.. Not touching the compressor wall but getting too close for comfort. Will be getting the turbo rebuilt.

I want to fix the issues that led to the turbo going out in the first place though.. Any ideas on where to look if the filter was in good shape, not blocked. I only got p0011, not p0022 so I am not leaning towards an oil pickup issue but I am not opposed to pulling the pan to inspect.

PS The filter is torn in the second photo because I cut it to get a better look of the inside

https://imgur.com/a/AadUp5H

Video of exhaust smoke

https://photos.app.goo.gl/KfC3r9JWzLFAiscf9
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Last edited by aidanmurphy; 03-02-2021 at 12:34 AM.
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Old 03-02-2021, 11:17 AM   #2
pigboat_2
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You already know the turbo is bad? Or?

155k miles on a turbo is pretty average, I wouldn't be too mad or confused as to why it failed now. I'd put a new CHRA in it and remove the banjo bolt filter, move to a 3k oil interval and obviously replace the AVCS solenoid.

PM me if you need help with the turbo. I used to rebuild them for a living.
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Old 03-02-2021, 12:06 PM   #3
aidanmurphy
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Originally Posted by pigboat_2 View Post
You already know the turbo is bad? Or?

155k miles on a turbo is pretty average, I wouldn't be too mad or confused as to why it failed now. I'd put a new CHRA in it and remove the banjo bolt filter, move to a 3k oil interval and obviously replace the AVCS solenoid.

PM me if you need help with the turbo. I used to rebuild them for a living.
When I pulled the turbo the shaft had some in and out play and a decent amount of side to side play.. Combined with the smoke from the exhaust that is enough for me to not put the turbo back in the car. Will shoot you a PM
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Old 03-03-2021, 02:48 PM   #4
Max Capacity
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When you get it back together, send an oil sample off to Blackstone Labs.

I did when I had 7000 miles on my Amsoil 5w-40 European Classic oil. They told me to leave it in there till 9000 miles and send in another sample. That was about 140,000 miles ago. I have been doing oil changes between 7-8000 miles.

Last edited by Max Capacity; 03-03-2021 at 02:54 PM.
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Old 03-03-2021, 03:51 PM   #5
aidanmurphy
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Originally Posted by Max Capacity View Post
When you get it back together, send an oil sample off to Blackstone Labs.

I did when I had 7000 miles on my Amsoil 5w-40 European Classic oil. They told me to leave it in there till 9000 miles and send in another sample. That was about 140,000 miles ago. I have been doing oil changes between 7-8000 miles.
That seems like an awful long time to run the same oil in a turbo vehicle... But I am not opposed to sending oil in. But I won't be running my car on 7k mile old oil
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Old 03-04-2021, 12:09 PM   #6
Max Capacity
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Quote:
Originally Posted by aidanmurphy View Post
That seems like an awful long time to run the same oil in a turbo vehicle... But I am not opposed to sending oil in. But I won't be running my car on 7k mile old oil
Amsoil and their filters are that good. As I said the engine has over 142,000 miles on this program, there is no normal Subaru engine sounds, no piston slap, no bearing noise.

I keep the oil level topped off. I find over the past few years, that after about 2500 miles it begins to use oil depending on how much time I spend in boost.


I'll add, my 09 Spec B is also on the same oil and goes 7-8000 miles between oil changes. It uses very little over that distance. Both cars are on Cobb AP V3 with custom tunes.

Last edited by Max Capacity; 03-09-2021 at 08:57 AM.
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Old 03-08-2021, 01:28 PM   #7
RSmokos
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You rebuilding the turbo or replacing? Mine just went out on my 09 wrx. Was rattling and has excessive play (obviously). Trying to figure out what direction to take. Don't mean to hijack your thread, just curious on your remedy. rebuild or buy new/used?
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Old 03-08-2021, 01:34 PM   #8
aidanmurphy
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Quote:
Originally Posted by RSmokos View Post
You rebuilding the turbo or replacing? Mine just went out on my 09 wrx. Was rattling and has excessive play (obviously). Trying to figure out what direction to take. Don't mean to hijack your thread, just curious on your remedy. rebuild or buy new/used?
Hey, I already purchased a new CHRA that I am planning to put in so yes I would consider it a rebuild. I got a CHRA with a billet compressor wheel also so it should spool a bit faster. You can PM me for more info on what route I am going.. CHRA was a recommendation from a helpful person who posted above in this thread
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Old 03-08-2021, 01:35 PM   #9
aidanmurphy
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Quote:
Originally Posted by Max Capacity View Post
Amsoil and their filters are that good. As I said the engine has over 142,000 miles on this program, there is no normal Subaru engine sounds, no piston slap, no bearing noise.

I keep the oil level topped off. I find over the past few years, that after about 2500 miles it begins to use oil depending on how much time I spend in boost.
I actually run AMSOIL as well.. I will look into getting a sample sent off for analysis
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