I have a 2005 5.4 3v I just did a timing chain job on it 2 months ago. I changed phasers, chains, tensioners, guides, solenoids, lifters, rocker arms, and the oil pump
. Now its back with similar symptoms as it had earlier because of low oil pressure I dropped the pan and cleaned the sump , there was some bits of plastic from a previously broken guide stuck up in it. While I had the pan down I checked the bearings rod and mains and since some were a bit scoured I changed them all.
JA: How old is your oil pump? Has the check engine
light come on?
Customer: I changed it with the timing chain job 2 months ago. I didn't finish the story though, I put it all back together and the pressure was significantly better cold , it went from 40 to 60 psi but once it warms up its back down to about 12. And yes the check engine light comes back on after the phasers start rattling which happens after the engine warms up and the oil pressure drops.
JA: What is the model of your '05 Ford?
Customer: Its a 150.
JA: Are you fixing your vehicle yourself? What have you tried so far?
Customer: I already typed what I did to it. My next step is to put air pressure to the oil system and check for leaks if I can't find any pull the pump again and check it out . Am I missing something? Any suggestions?
JA: Anything else you want the mechanic to know before I connect you?
Customer: That out be about enough to start on.