GMC 1500 5.7 eng. floor shift 4 X 4 ser. # 2GTEK19K2P1512173 Runs like s--t missing like a cross fire new plugs(fooled), cap, rotor (burnt)set timing, both sides of throttle body has fuel but it acts as if only one is getting fuel the hose from;e exhaust jumps... Login to read more.