I tried searching up my old thread, but cant find it and forgot exactly what the 98 '4six tick' was. Isn't it a something with the timing chains? I've had the tick since I've had the truck, never got to fixing it. Also thought there was a TSB on it from Ford IIRC. this is the 4.6, not the 5.4, so its not the injectors nor an exhaust leak.



thanks

 

u thinking a failed lash adjuster?

 

cam phasers rings a bell. . .