last year i lost # 4 also, the blue clamp came off. It didnt wear a hole though, it let the line VIBRATE too much. The line split at the little neck or ridge in it where it goes into the inj. ri\ght at the nut.
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09 QC 4X2 BIGHORN DRW G56 3:73 INFERNO RED Timberens B&W GN Dipricol Optix ga.(boost,fuel pr. EGT) , CAT 2 mic remote F/F Smarty17S, stock exhaust in tact.