Hey I have a 2002 Laredo with the 4.7 V-8. If you start it and put it in gear and start driving, it is fine. If you start it and let it sit in park and idle, after about 2 minutes, it starts sputtering and shaking. You can go to the exhaust and here the sputtering. What should I check? It has 80,400 miles on it.

any codes?? possible tune-up

No codes. I'm being told to change the fuel filter?