2nd Generation Specific 1986-1992 Discussion

plugged cat

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Old 09-12-2006, 08:21 AM
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how do u know if ure cat is plugged
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Old 09-12-2006, 03:19 PM
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it'll accelerate like *** at all times, not a lot of exhaust will be coming out the tailpipe, the cat will turn orange if the car runs long enough, umm couple other things too.



kevin.
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Old 09-13-2006, 12:39 PM
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generaly they start to smell.
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Old 09-14-2006, 12:26 AM
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cut it off and dont worry about it.
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Old 09-14-2006, 07:29 AM
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On a similar note, how can you tell if a resonator's packing has melted? A shop installed for me a 2" ID resonator, but didn't specify what it was made of.
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Old 09-14-2006, 09:31 PM
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if its really really plugged, you can pull the o2 sensor out to relieve some of backpressure. If its much improved driving around the block with no oxy sensor, the cat is a solid mass of ceramic crap.
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Old 09-15-2006, 12:56 PM
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Originally Posted by Baldy' post='836938' date='Sep 14 2006, 05:29 AM

On a similar note, how can you tell if a resonator's packing has melted? A shop installed for me a 2" ID resonator, but didn't specify what it was made of.


it would just get louder, if its really badly melted it will melt closed
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