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Exhaust soot

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Old 06-29-2020 | 08:30 AM
  #16  
Roswell88's Avatar
Roswell88
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Burning Brakes
 
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Originally Posted by C7toM2toGT4?
I have the AWE Switchpath and I get the drips on start up as well. Nothing more to tighten, so I'm glad to know I'm not the only one!
I’m also glad to hear I’m not the only one, I searched the forum but nothing came up so thought I’d ask. 😭
Old 06-29-2020 | 09:39 AM
  #17  
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VektorPerformance
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From: Shenandoah Valley, Virginia
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As many have stated, likely a cold leak. When the car cold starts moisture accumulates on the internal surfaces and eventually comes out the tailpipe as steam. Some factory mufflers actually have small weep holes to allow egress of accumulated moisture and reduce the probability of internal corrosion.

On a clamped section like that, you'll have evidence of a leak only when cold. To know if it's leaking when hot, you'd need to get under the car and check it while it's running. Larger leaks would be audible when close, but smaller leaks are easy to see when using something like a smoke stick. I've seen people do leak detection with a grill lighter too (carefully!).



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