Hi I own a 2000 jimmy. Came home from work, 2 hrs later the truck would turn over but not start. Left it sit a couple hrs and it started. Went to work that night and the truck would not start again in the morning. So i called AAA and the driver hit the gas tank with a rubber mallet, Then the truck started. Got home a few hrs later again no start, so i hit the tank with a mallet and the pump kicked in and the truck started and has been since. Now should i change the pump or could it be just the fuel filter? Any help with this? Thank.s Terry
