Injector Noise and difference when pluged in
Now that the temps are dropping have some injector questions. 06 6.0 w/225K miles, was a one owner truck but not sure if original injectors or not. When cold 1st 2 minutes it runs sounds like the rods are going to come through the block I mean it really raises heck, if plugged in it's quite as a mouse. Same thing in warmer months if it's really warm no noise the colder it gets the louder they get. My question; is this normal for injectors with high mileage? Or is there other possibilities for my noise that isn't injectors?