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Old 10-13-2017, 01:29 AM   #1
Ayau808
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Member#: 465238
Join Date: Mar 2017
Location: Hawaii
Vehicle:
2004 STI
Silver

Default White smoke question

I have an 04 STI with stage 2 tune. I sometimes have white smoke from the exhaust during idle but if I turn my AC on it goes away. Also if I drive with my AC on then sit at idle it doesn't smoke. I have no loss of power, no weird noises, and good data logs. Anyone know what could cause the smoke to stop when the AC is on? Maybe the idle change when AC is on? Thanks
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Old 10-13-2017, 01:38 AM   #2
Vancouver98STi
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Member#: 459287
Join Date: Dec 2016
Chapter/Region: VIC
Location: Vancouver BC Canada
Vehicle:
1998 JDM Impreza STi
White GF8 wagon

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Quote:
Originally Posted by Ayau808 View Post

I sometimes have white smoke from the exhaust...
If your coolant level isn't dropping, then it's just condensation in your exhaust system burning off.
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Old 10-13-2017, 01:50 AM   #3
Ayau808
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Member#: 465238
Join Date: Mar 2017
Location: Hawaii
Vehicle:
2004 STI
Silver

Default

Quote:
Originally Posted by Vancouver98STi View Post
If your coolant level isn't dropping, then it's just condensation in your exhaust system burning off.
I did some research and read that. Sometimes at idle without the AC on the smoke seems more than condensation.
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Old 10-13-2017, 08:23 PM   #4
Vancouver98STi
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Member#: 459287
Join Date: Dec 2016
Chapter/Region: VIC
Location: Vancouver BC Canada
Vehicle:
1998 JDM Impreza STi
White GF8 wagon

Question

Quote:
Originally Posted by Ayau808 View Post

Sometimes at idle without the AC on the smoke seems more than condensation.
Well, is it still "white smoke" (as posted)... or is it blue smoke, or black smoke?
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Old 10-13-2017, 08:43 PM   #5
Ayau808
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Member#: 465238
Join Date: Mar 2017
Location: Hawaii
Vehicle:
2004 STI
Silver

Default

Yes it's white but seems like a lot of smoke for condensation. Anything else cause white smoke?
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Old 10-13-2017, 08:47 PM   #6
Vancouver98STi
Scooby Newbie
 
Member#: 459287
Join Date: Dec 2016
Chapter/Region: VIC
Location: Vancouver BC Canada
Vehicle:
1998 JDM Impreza STi
White GF8 wagon

Default

Quote:
Originally Posted by Ayau808 View Post

...seems like a lot of smoke for condensation. Anything else cause white smoke?
Previously covered.
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