i have a 2006 ranger sport with a 3.0 v6 5 sp 4x2,this truck likes to eat up a fuel injector about every 30000 kms. i have about 92000 on it now and is showing signs of another injector going bad. i have put 2 ford fuel filters on it ,inj cleaner,etc. it has new ford plugs and wires ,air filter...