natebivens
New member
I have a 2001 jeep grand cherokee, with a 4.0 powertech I6. The engine will sometimes die while at an idle. Or, it won't start if you don't get it started on the first try. If I wait for about 30 minutes, then it will start. I bought a fuel pressure gauge and checked the pressure. With the key turned on pressure comes up to 45 lbs and then bleeds down very slowly. I waited for about 5 min. And, it bled down to 39 lbs. When i started it the pressure came up to 44 lbs. But, the needle was jumping like crazy from 44-41 lbs. Do I have a bad regulator? Or should I change the fuel filter first?