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Unread 2012-06-26, 02:42 PM   #1
Billy Mild
 
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Default A good way to look for exhaust leaks

My car ever since having the middle section of exhaust replaced I believe has been dumping more exhaust in the cabin. I reek of exhaust anytime I drive the car now.

Is there a good way to test for exhaust leaks? I would like to eliminate then all so exhaust comes out the tailpipe and doesn't leak in the cab.
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Unread 2012-06-26, 03:27 PM   #2
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smoke/fog machine?
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Unread 2012-06-26, 07:56 PM   #3
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Hold the back end of the tailpipe.
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Unread 2012-06-26, 08:03 PM   #4
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Hold the back end of the tailpipe.
This. Have someone put their shoe against it with the car running. It will hiss where its coming out.
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Unread 2012-07-04, 06:35 PM   #5
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Seafoam would work as well
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Unread 2012-07-05, 08:53 PM   #6
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Seafoam? Why? So you can smoke the whole thing up?

Smoke machine has been the best/easiest way for me to find exhaust leaks/intake leaks/evap leaks.
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Unread 2012-07-06, 08:43 AM   #7
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I was merely suggestioning an alternative. You can run seafoam, let it idle and place your foot/hand/whatever over the tail pipe and the "smoke" would pour out of the leak.
Same concept as the smoke machine. Not everyone has access to said machine.
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Unread 2012-07-06, 08:52 AM   #8
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I always just covered it in a 1:3 soap to water solution, and where it bubbles that is where the leak is. Then wash it off when you are done so it doesnt burn up.
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Unread 2012-07-06, 12:33 PM   #9
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Your hand?
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Unread 2012-07-06, 03:24 PM   #10
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Quote:
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I always just covered it in a 1:3 soap to water solution, and where it bubbles that is where the leak is. Then wash it off when you are done so it doesnt burn up.
That's a better why to check for air leaks from tires. The exhaust would heat up to fast that to be reliable.
Hence why water pours out of tailpipes, on start up, from condensation from "cold" pipes heating up quickly.
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Unread 2012-07-06, 04:11 PM   #11
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You just get someone to hold a rag over the tailpipe...the leak will be really easy to find, most of the time I do it on my own and can tell where the leak is when standing at the tailpipe!!
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