Question about 2004 Jeep Grand Cherokee
Sounds like you have a coil or 2 arching out,they would have to watch misfire mointor on scan tool to see which cylinders are misfiring,also there is a tsb on that, requiring a reflash,but you said that was done,hopefully done right,dealer unable to find problem,what kind of tech is working on your jeep??? well good luck, hope this helps.
Posted on Oct 05, 2009
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Posted on Jan 02, 2017
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Dec 14, 2016 | 2003 Jeep Grand Cherokee Limited
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Engine stalling and rough run
issue at low speeds
is commonly caused by a dirty automatic idle speed control valve and
throttle valve. Buy a can of throttle valve cleaner (do not use
carburetor spray cleaner!) from NAPA or Carquest (made by CRC
chemicals) and spray it into the air intake while the engine is
running, use up about 1/2 the can, engine will try to stall hold the
speed up, shut it down and let it soak for 30 minutes, restart and
blow out the remaining fluid, shut it down and disconnect the
negative battery cable for 5 Min's to reset the base idle control
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