5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

help with cats

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Old 02-06-2008, 07:47 PM
  #1  
Stang562
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Default help with cats

well i put my stock headers back on today. I tighten all the bolts from the header and from the piece that connect to the cats. Well i started my car and it seemed really rough so i let it ran for a minute or two. I let it cool off and the tightened the bolts again. It seemed to run a little rough but not as much as before. So i went to the gas station down the block and came directly back home when the check engine light came on. I parked, got off and the car had smoke coming from the passanger side. I peeked at the bottom and notice the first cat was glowing orange and the second one not as bad. What could have caused this?
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Old 02-06-2008, 07:58 PM
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Albizo66
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Default RE: help with cats

when its glowing like that, it usually means its clogged..
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Old 02-06-2008, 08:03 PM
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Stang562
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Default RE: help with cats

so i must have dropped something in there?
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Old 02-06-2008, 08:43 PM
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tylerl90
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Default RE: help with cats

No telling. You'll need to replace them. Either that or remove them completely.
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Old 02-06-2008, 09:06 PM
  #5  
Stang562
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Default RE: help with cats

damn that sucks... i might as well get straight pipes
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Old 02-06-2008, 09:48 PM
  #6  
Albizo66
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Default RE: help with cats

a nice reason to get an o/r x or o/r h
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