ok disconected fuel line to injector 6.....and walla noise gone!!! looks like new injectors
we will see what happens next....Thanks to all !!!!!

 

dumb question but when a injector goes bad do you need just the nozzle or do you need the whole injector?

 

The whole injector needs to be replaced but first they should be sent in for testing. Most are just worn out a 2 micron filter pre CP3 pump will add a few hundred thousand miles to the life of an injector set! "WORTH DOING"