Yeah, the replacement was a one piece. It was that damn taper the went in the the head that froze.Then ofcourse in 08 they we to a better plug design.
Yeah, the replacement was a one piece. It was that damn taper the went in the the head that froze.Then ofcourse in 08 they we to a better plug design.
I've got a few mod motors under my belt now and I think based on what I've seen, the main #1 issue in terms of longevity is the Oil pump no matter which genera. Actually You might say maintenance #1 and Oil pump #1.5... Once they start wearing out, they seem to start starving the passenger side cyl head and all the timing components of lubrication first and it's downhill from there.
I think if you went in around 150k give or take and upgraded the Oil pump (while hopefully everything else should still be in good shape) you'd have even a 5.4 3v that will run well for a really long time.
Terrible design flaw. On top of that i dont think ford even used antisize on the threadsYeah, the replacement was a one piece. It was that damn taper the went in the the head that froze.
No, plenty of threads. The bottom of the plug had a taper the went into the bottom of the head. That’s what seized. Bottom of the head had no threads.I thought the heads only had a few threads...and the plug threads would extend past the head threads. Carbon would build up on the bottom plug threads, making it very difficult to remove the plug without breaking it.
Pretty sure in 2005-6 they went to a head with more threads to prevent this?
They didn’t. Had they, piece of cake IMO. 8 hours to change plugs for me. Most local shops want $650 plus to do them. I have friends who ask me to do theirs, nope.Terrible design flaw. On top of that i dont think ford even used antisize on the threads
Damn. Forgot that one too. God that truck was a hunk of shit. Cracked manifoldsSure its not a leaking manifold gasket?
The most likely cause of phaser issues on the 3v is from not using motorcraft oil filters and the recommended viscosity oil.
Looks like money to me.
Think by installing a better oil pump early on can prevent some of the issues?
The most likely cause of phaser issues on the 3v is from not using motorcraft oil filters and the recommended viscosity oil.
I dont think the whole line of 5.4 3v were a hunk of junk. There has definitely been some huge issues. But it seems that alot of actually failed low mile 5.4 3v were due to not keeping up with maintenance or using the run of the mill oil shop with cheap filters and cheap oil. Theres a good amount of 5.4 3v with over 150k milesDamn. Forgot that one too. God that truck was a hunk of shit. Cracked manifolds
Looks like money to me.
Line them up, plugs, phasers, exhaust manifolds, the occasional follower that shits the needle bearings and wrecks the cam. 5.4 3V were a big pile, hence the paycheck keeps Rollin in. Sure there were a handful that defied the norm, but I didn't get the practice I did by not working on them.
I agree.I dont think the whole line of 5.4 3v were a hunk of junk. There has definitely been some huge issues. But it seems that alot of actually failed low mile 5.4 3v were due to not keeping up with maintenance or using the run of the mill oil shop with cheap filters and cheap oil. Theres a good amount of 5.4 3v with over 150k miles
On the phasers I believe the first design part was not robust. The second issue is due to lack of maintenance. Ford released a TSB stating poor quality filters could wind up breaking down and media can make it through the system into the phaser.It seems you have experience with them what have you notice is the main reason of failures?
Think by installing a better oil pump early on can prevent some of the issues?