Question about 1997 Jeep Grand Cherokee
It's good that the check engine light came on. Good in the respect that now you have a stored code that may give you a clue as to what the problem is. Most larger parts outlets do code scans free...have it done and see what system the code relates to. (codes often indicate a system, not an individual part so you may want to get a haynes or chilton manual and a digital multi-meter to do further testing) I'd guess that the problem may be with the coolant temp or intake temp sensor, but that's only a guess and needs to be verified by testing.
Posted on Feb 04, 2010
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Posted on Jan 02, 2017
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Jul 29, 2017 | 1996 Jeep Grand Cherokee
May 09, 2017 | 2004 Jeep Grand Cherokee
Jul 21, 2012 | 1997 Jeep Grand Cherokee
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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