hey

i have a 2004 dodge ram 1500 hemi this problem just started a few weeks ago it has 22,000 mile and i use it about once a week to go to town on. when i first start it you have to pat the gas about three time to get it to start after that it cranks without giving any gas. it has alway cranked on the first key turn without any gas being applied.is there a check valve to keep gas from running out of injection system? anyone have this problem before? thank you for any help. i noticed that most gas stations have 10 % ethnol in there fuel now