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Old 10-11-2010, 04:56 PM   #1
lee1dew
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Default white smoke after uppipe and downpipe install

A couple of days ago, I brought my WRX to a reputable shop to have my uppipe and downpipe swapped back to stock. On my way home, I saw white smoke come out from under my hood on several occasions when stopped at stoplights. It was after the shop's closing time, so I didn't call them, but did email them this morning and am waiting for a response. In the meantime, any ideas what it might be?

I rarely drive the car, so I haven't had a chance to see if it's still smoking since the drive home. Once I got home, I opened the hood with the car still running and didn't notice anything obvious.
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Old 10-11-2010, 06:09 PM   #2
ScoobieSnatch
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Quote:
Originally Posted by lee1dew View Post
A couple of days ago, I brought my WRX to a reputable shop to have my uppipe and downpipe swapped back to stock. On my way home, I saw white smoke come out from under my hood on several occasions when stopped at stoplights. It was after the shop's closing time, so I didn't call them, but did email them this morning and am waiting for a response. In the meantime, any ideas what it might be?

I rarely drive the car, so I haven't had a chance to see if it's still smoking since the drive home. Once I got home, I opened the hood with the car still running and didn't notice anything obvious.
Depending how severe the amount of smoke is it may be oil burning off.
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Old 10-11-2010, 06:12 PM   #3
RaineMan
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It is probably just oil and chemicals burning off the pipes. New pipes come coated with protective chemicals to keep moisture away from them during shipping and storage. A couple of days worth of driving around should give it enough time to burn off.
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Old 10-11-2010, 06:32 PM   #4
Faster_Gun
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Also could be oil on gloves or hands that was relocated to the pipes, I would say check your dipstick to be certain.
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Old 10-11-2010, 06:36 PM   #5
Synx
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Dont forget Anti-Seize, that stuff is always good for smoke after exhaust/turbo work.
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Old 10-11-2010, 07:35 PM   #6
ascott13
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Originally Posted by Synx View Post
Dont forget Anti-Seize, that stuff is always good for smoke after exhaust/turbo work.

this! i scared the **** out of myself when i did the UP and DP and saw the smoke... turned out to be a bit too much antisieze and it ran out onto the top of the downpipe and smoked a bit... great smell too...
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Old 10-11-2010, 09:05 PM   #7
wrxlaunch
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I'm sure he said he swapped back to stock...
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Old 10-11-2010, 10:10 PM   #8
JasonLHall
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Probably PB blaster and other oils. I wouldn't be over concerned I had the same issue with mine and it stunk.
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Old 11-04-2010, 04:25 PM   #9
ddaley60
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i just put in a catless dp and up last nite and didnt have any problems on the 10min drive home but this afternoon after driving for about 5min or so white smoke started coming out of the exhaust, alot of it at some times but none at all other times... im hoping its not a blown head gasket or anything
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Old 11-05-2010, 11:31 AM   #10
VTrider36
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+1 to the anti-seize and PB blaster.
I did this install myself and loaded up on the PB and seize lube, def smoked for a couple days after the install. No worries man, you'll be back to normal in no time.
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Old 11-05-2010, 12:41 PM   #11
cabikejumper
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Could be oil or coolant leaking. If they removed the turbo
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Old 11-08-2010, 04:04 AM   #12
AZnacho
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Happened to me, caused from too much anti-seize.
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Old 11-08-2010, 04:26 AM   #13
squeezeboxer2.5
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+3 on antiseize/PB blaster

had the same thing happen to me when I installed the downpipe a few weeks ago
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Old 11-23-2010, 10:54 PM   #14
02wag
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+1 pb and some raunchy smell (no cats) lol. What a pain in the butt install.
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Old 11-12-2014, 08:06 PM   #15
mbell75
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Hate to bump an old thread but Im glad I found it! I recently bought an 03 WRX and just took it to Cobb to have a new downpipe, uppipe and a stage 2 Accessport tune. Was seeing some white smoke and getting a burning smell from under the hood. No CEL and normal temp on the gauge, everything looked fine. Cobb says its just PB Blaster and the lubricant on the new parts burning off and should be cleared up in 2-3 days. Still freaking me out though. Glad to hear its not uncommon.
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Old 11-16-2014, 12:41 PM   #16
eng_zahir
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Hi
1- if the smoke drop off after few minutes of hard driving , it could be the oil and dirt which is related to the changing process in the shop.
2- if not , and you could see the smoke at the stop light from your hood , it could be a continuous oil leakage from the turbo oil inlet or outlet , and could harm your engine too (lowering oil pressure ,worst condition)
3- if you see the smoke at the stoplight and at your gear change from exhaust( back of your car ) , then check out your turbo's oil ring which is located at its hot side ...
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