Injectors

[Roclux]

Hi
I've just joined this group I have a Toyota hilux sr5 2013 disel and I'm having trouble with my injectors when cold on first start up they ratle like crazy it's still under new car warranty I have taken to Toyota a couple of times and they got back to me and said its normal it's the injector pilot making this noise
Not sure what to think should I get someone else to diagnose or has anyone on hear had this same problem and know what's the best outcome

Thanks Rocco