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Cat failure

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Old May 13, 2009 | 10:29 AM
  #41  
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some signs can be power loss, sluggish pedal response, and check engine light. Maybe a few more signs but that is mostly what I delt with
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Old May 13, 2009 | 12:06 PM
  #42  
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Thanks
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Old May 13, 2009 | 01:07 PM
  #43  
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when mine failed I also got random misfires
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Old May 13, 2009 | 09:41 PM
  #44  
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Depending on how the cats fail, there could be different symptoms. If a cat is plugged, you will notice poor acceleration, engine will not rev above 4k, and will start to ping and misfire at that point. Might even notice weak exhaust out of the tailpipe.
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Old May 13, 2009 | 10:08 PM
  #45  
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a little off topic, but when you buy a new vehicle is it a 5 or 7 year grace period in cali?
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Old May 15, 2009 | 02:47 PM
  #46  
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yes....i bought the truck in october 02 and i believe ill be up for smog this fall.
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Old May 15, 2009 | 02:49 PM
  #47  
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So whast up wit the 4 inch exhaust??? And why do I get teh blame ?????

Last edited by Mangled03gmc; May 15, 2009 at 02:58 PM.
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Old May 16, 2009 | 10:36 AM
  #48  
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selling off the 4" stuff your fault for everything because i say so
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Old Jun 16, 2009 | 08:55 PM
  #49  
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the cats are now hollow and for sale. looks like this friday or next tuesday ill drop it off for duals.
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