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Topics regarding exhaust systems beginning at the headers down the pipes and through the catalytic converter and the mufflers and exhaust tips. We can also discuss emissions, performance cat back exhausts, or any exhaust related topics.
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Catalytic convertor ?

November 1st 2010, 2:42am

Is it normal for water to be dripping from the Catalytic convertor?
Also does the Catalytic convertor get louder when it goes bad?
Lately on my 2002 Astro its dripping water and sounds a little louder like it hs some kind of exaust leak :shrug:

Re: Catalytic convertor ?

November 1st 2010, 2:52am

Is it the cat or is it a failed flange gasket between the cat and muffler. Exhaust systems do drip water, especially when they are first started up (cold). I have to replace the flange bolts on my wifes' '01 truck.
The studs have rusted away, and 1 is now missing. Figgure I'll drill out the remainder, and nut and bolt the sucker. Any how, the system is noisier than it was a while back, and I think it is the flange leaking.


Re: Catalytic convertor ?

November 1st 2010, 3:53am

i dont know , i'll have to take a closer look .

Re: Catalytic convertor ?

November 1st 2010, 2:13pm

Block the tailpipe outlet with a rag while it's running and listen for leaks. Water dripping when the engine is cold is normal.
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