I changed my timing tensioners ,cam phasers,vct solinoids,and all spark plugs!!! My 5.4l engine in my 2008 f150 is rumbling struggling to stay started. But when i unplug the vct solinoid it works fine no rumbling . But if i plug it bacvk in it goes back to struggle to stay on when i come to a stop light . What is the issue i'm out of thoughts!!

 

Where did you buy this stuff from and what brand is it. Timing could be off a tooth. Do they both affect the motor?