I have aa 03' GC 6 cylinder with 103,000 miles. I am having starting issues, sometimes Jeep will start no problems, others won't start, sometimes it wont start first attempt,but will fire right up the 2nd. I know its a fuel issue, if I spray starting fluid in air intake it fires up every time. I thought maybe the pump wasn't holding pressure, I changed the pump, same problem. fuel filter is only 10,000 miles or less. I will be getting a fuel pressure gauge monday, I am leaving out of town tomorrow. any ideas?