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Old 05-11-2006, 04:24 PM   #1
Paulie
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Member#: 16565
Join Date: Mar 2002
Vehicle:
2002 WRX
Aspen White

Default Smoking turbo turned out to be a torn inner CV boot (long post)

Don't know if it's a common thing or not but wanted to tell you a story that just happed to me...

I get home from testing a new suspension set up and notice smoke puffing out of my hood. It was billowing out from behind my turbo heatshield, and from the bottom of the heat shield on the downpipe.

I call a buddy of mine since he just changed his turbo not too long ago and ask him what it could be. Possibly only a handful of things he says. Either the turbo seals went bad and I need a new turbo, the coolant inlet line or oil inlet line to the turbo is loose or came off, the oil return line hose is leaking, or the oil return tube gasket is leaking.

He comes over to help me diagnose the problem and there was oil all over the underside of the car, right below the turbo and all in that general area (or so we thought it was oil).

We couldn't properly jack the car up high enough to really see what was going on there so we thought it must have been the oil return line hose or gasket since everything else was fine. But the only way to check it is to take the turbo off, or really get under the car and have a good look, which we already tried.

I decided to go under the car that night, this time removing the wheel and crawling up in there with a shop light. I saw the oil return hose Ben was talking about and it didn't appear to be leaking from that area. I was baffled. Thought it may be the turbo seals after all and I really didn't want to buy a new turbo knowing I'm leaving in 4 months. Took the heat shield off (that was an excercise in frustration), and there was no oil leaking anywhere.

So I'm about ready to give up and I notice a lot of "sludge" on my inner CV boot. I feel around there and the sludge was not oil at all.

It turned out that over time, the inner CV boot on the passenger side (sitting right in front of the downpipe) got brittle and finally split in half, spewing grease all over that area, and onto the downpipe which is what was causing the smoke when it got hot. Got all the parts and fix it the next day.

Just something you may wanna check if you have a smoking coming from under your hood in the turbo area...



- Paulie
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Old 05-11-2006, 04:38 PM   #2
Crazykev
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Join Date: Aug 2005
Chapter/Region: MWSOC
Location: Cincinnati,Oh
Vehicle:
'03 Build'n a 2.12L
331whp/331wtq

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Yep, had my passenger side rip too! Look at my DP:


Sucks, especially with your pristine ride Paulie!
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Old 05-11-2006, 04:54 PM   #3
Paulie
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Aspen White

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[quote=Crazykev}Sucks, especially with your pristine ride Paulie![/QUOTE]

He he he. Nothing a little degreaser can't fix. We cleaned it up and it's all back in order now, he he he.

- Paulie
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Old 05-11-2006, 05:00 PM   #4
Crazykev
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331whp/331wtq

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Mine was a small hole and it cooked on I could smell something, but no smoke

Would have had to sandblast er off
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Old 05-12-2006, 09:51 AM   #5
Acostafan
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Chapter/Region: South East
Location: Chattanooga, TN
Vehicle:
2002 Now with 100%
RDA of 2.5l Goodness!!!

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EXACT same thing happened to me when I had my 1.8 L. Those boots get cooked sitting near the exhaust and DP like that. I thought I had blown a head gasket or worse!
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Old 05-12-2006, 02:51 PM   #6
Kean
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'08 Foz Prem TGM
'10 Challenger R/T Blk

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....good info. I've had an inboard boot strap loosen up on me and the smell was quite distinct. Luckily it was just the strap and I caught it within a day or two (it began to spew grease on the back of the heatshield). I was able to simply replace the strap and haven't had any problems since.
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Old 05-12-2006, 04:26 PM   #7
desert pirate
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What exactly did you replace it with? a universal one that screws together? I need to fix mine.
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Old 05-12-2006, 04:46 PM   #8
Crazykev
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331whp/331wtq

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I went to Subaru and got a new one piece boot, removed the axle and replaced it.
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Old 05-12-2006, 04:52 PM   #9
Kean
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'10 Challenger R/T Blk

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....I'm glad I caught mine in time. Was the removal/install fairly straight forward for the axle?
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