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What's wrong with them? Are they stuck? (You can try the old trick where you slowly pour Transmission Fluid into the carburetor while the engine is running, taking care not to stall it. Don't do it near your neighbors, because it creates a hell of a lot of smoke). Are the valves burned? If so, then you'll have to pull the head.
What else can I help you with?
How many valves does the 2014 Jeep Cherokee have?
The 2014 Jeep Cherokee has 16 valves.
How many valves does the 2013 Jeep Grand-Cherokee have?
The 2013 Jeep Grand-Cherokee has 24 valves.
How many valves does the 2009 Jeep Grand-Cherokee have?
The 2009 Jeep Grand-Cherokee has 12 valves.
How many valves does the 2011 Jeep Grand-Cherokee have?
The 2011 Jeep Grand-Cherokee has 24 valves.
How many valves does the 2006 Jeep Grand-Cherokee have?
The 2006 Jeep Grand-Cherokee has 12 valves.
How many valves does the 2008 Jeep Grand-Cherokee have?
The 2008 Jeep Grand-Cherokee has 12 valves.
How many valves does the 2012 Jeep Grand-Cherokee have?
The 2012 Jeep Grand-Cherokee has 24 valves.
How many valves does the 2007 Jeep Grand-Cherokee have?
The 2007 Jeep Grand-Cherokee has 12 valves.
How many valves does the 2001 Jeep Grand-Cherokee have?
The 2001 Jeep Grand-Cherokee has 12 valves.
How many valves does the 2003 Jeep Grand-Cherokee have?
The 2003 Jeep Grand-Cherokee has 12 valves.
How many valves does the 2002 Jeep Grand-Cherokee have?
The 2002 Jeep Grand-Cherokee has 12 valves.
How many valves does the 2014 Jeep Grand-Cherokee have?
The 2014 Jeep Grand-Cherokee has 24 valves.
