Sorry Probs. sound Like Rod Knock,more Intermitant. done It 3 Times The 2nd I Replaced Fuel Filter And Filled The Filter Housing With Lucas Injector Cleaner, Seemed To Help. Could A Tip Be Damaged Or Just Plugged. Thanks For The Help. 03 4x4,banks Intercooler And Exhaust, Edge Ez,all The Gauges,mod Intake,sun Coast transmission. full Synthetics. stats On My Sick Baby. .