Engine Cooling problem
2002 Jeep Grand Cherokee 6 cyl Four Wheel Drive Automatic 180000 miles

I have a 2002 Jeep Grand Cherokee, and it is having a starting problem..sometimes it will start fine sometimes it will start but not idle and you can turn it off about three times and then it will run fine. and sometimes it will not start at all..the check gauges like comes on some times but not the check engine so I cannot get a code for the problem..it also has a real gassy smell