Re: 2000 5.4 replaced the lifters - started ticking again
I narrowed it down to the second lifter from the front on the passenger side. I used some 1/4 inch poly tubing hooked to a shop vac and ran it horizontally along the oil port. I alaso sucked out the bottom and that semicircle cut out in the bottom of the lifter hole in #'s 1, 2 and 3 lifter holes.
The poly tubing is clear and the oil in at the time only had 80 miles on it so it was pretty clear and I saw nothing obvious get sucked up.
I replaced that one lifter. The one I just put in came from Summitt and they were trick flows and the one I just put in was the same.
Put in new motorcraft 5w20 synthetic blend and a new motorcraft oil filter.
Let the thing idle for a while and after about 45 minutes it started ticking real low then after about 5 minutes of the ticking starting, it got up to that lifter whacking sound as original. I put my head down to the valve cover, and without taking it off, I would bet you it is the same lifter.
At this point I'm sure the lifter is not getting the oil it needs or I'm just fixing symptoms of some other problem causing the lifter to collapse.
Is it time for new heads or valves or springs or WHAT??!!??!! Do I have to pull the head to completely see that lifter oil port or holes that the oil is supposed to travel through.
One other question - if it is that (clogged port) why does it only initially start after the truck has run for about 40 minutes. If the port is clogged would it not do it from the start up instead of when the oil and motor has got warmed up.
I need some help on this - anybody else had this problem before - Like I said before - the colapessed lifter (now 3rd in a row) may only be the symptom.
I checked the rockers and they all seemed to be good and tight with no scratches on them. I checked the cam chain tensioner as well and there was not any play in the timeing chain.
Thanks in advance.