prolonged use could clog up your catalytic converter with unburned fuel, but if the engine will stay running with the vacuum leak you shouldbe able to limp it home, be sure to get it fixed soon, the poor runing, the shaking, stalling, and sputtering will eventually lead to bigger issues.
NoNo
The 2013 Jeep Grand-Cherokee has rear wheel drive.
Residual vacuum from vacuum reservoir.
Chrysler transmissions do not have modulator valves.
Yes
No.
NoNo
A Grand Cherokee is either rear wheel drive or four wheel/all wheel drive.
The 2007 Jeep Grand-Cherokee has rear wheel drive.
The 2010 Jeep Grand-Cherokee has rear wheel drive.
The 2008 Jeep Grand-Cherokee has rear wheel drive.
The 2011 Jeep Grand-Cherokee has rear wheel drive.
The 2001 Jeep Grand-Cherokee has rear wheel drive.
The 2006 Jeep Grand-Cherokee has rear wheel drive.
The 2004 Jeep Grand-Cherokee has rear wheel drive.
The 2005 Jeep Grand-Cherokee has rear wheel drive.
The 2009 Jeep Grand-Cherokee has rear wheel drive.