new cat now steam out exhaust -
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Unread 09-12-2012, 08:28 AM   #1
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1979 FSJ Cherokee 
Join Date: Nov 2010
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new cat now steam out exhaust


so I just got a new cat put on and now when I start it up I get some white steam and alot some water dripping out of the tailpipe. I never had this befor the new cat got put on. Is the steam due to my new cat and will it go away in time? The jeep has not been run for more than five min or so maybe 4 different times I still have to put on my new fan so don't want to over heat. any ideas on this steam and water

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Unread 09-12-2012, 08:48 AM   #2
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1983 CJ7 
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That's just a byproduct of a good cat and completely normal.

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Unread 09-12-2012, 09:03 AM   #3
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The creation of moisture happens with any internal combustion engine. It may have just been puddling in the old cat.
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