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New muffler and cat question?

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Old Jun 26, 2010 | 11:32 AM
  #1  
snaftcat's Avatar
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From: El Paso, TX
Year: 1986
Model: Cherokee
Engine: 2.8L
Default New muffler and cat question?

Hello there everybody, my question to you all is: I just recently got a Thrush muffler w/ highflow cat (2 1/2in). Got it installed from the pipe where original cat was at. Nothing was touched from manifold to first piece of pipe that goes to catalic converter. Well, it sounds great and sounds like a cam or something? The problem is that it has stalled twice on me at a red light when slowing down and coming to a stop. Do I need to look at rmps? Or what? Thanks.
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Old Jun 26, 2010 | 11:36 AM
  #2  
imthehink's Avatar
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From: Broken Arrow, OK
Year: 1999
Model: Cherokee
Engine: 4.0
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Sounds like the tps to me. This started after the muffler install?
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Old Jun 26, 2010 | 01:11 PM
  #3  
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Year: 1996
Model: Cherokee
Engine: I6 4.0L H.O.
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your idle air control valve can cause issues like that too. Might want to pull it out and maybe clean it, see if that helps
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