My truck has been doing it for about a month and have not really worried about it to much. beacuse it has not efected the running of the truck.

there is a vibration and a ticking noise. in the first injector line on the front driver side of the engine.. you can not feel the vibration unless you touch it. but you can hear the ticking all the time..

what could the be the cause of this? bad injector? they are stock with 171k on them

 

do you have the little blue injector line brackets on in the correct location. if these are not in the right place your lines will vibrate and eventually wear out

 

it is more of a pulsing/vibration along with a ticking all the time and there is no clamp on #1.. line

 

Probably wouldn't worry about it too much....my '03 has done it since new and now has close to 300k on stock injectors. I too wondered about it right after I bought it but for once the service dept at the dealership was right....said it was nothing to worry about, they all do it. I left it at that and so far no problems.

Now I guess I better go find some wood to knock on .