05 expedition multiple codes.
Fleet Owner
Joined: Apr 2008
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From: 0,0,1
If it is, then between that and the other work you did it sounds like they dodged the replacement engine bullet.
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Tuned
Joined: Mar 2005
Posts: 479
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From: Mesa AZ
I Haven't had a whole lot of time to do anything with the truck. I'm thinking before I spend their money on everything needed, it would be a good idea to check the oil pressure and get an idea of what the mains look like.
Anyone know what the oils pressure spec is on the 5.4 3v?
Anyone know what the oils pressure spec is on the 5.4 3v?
Posting Guru
Joined: Dec 2014
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Minimum oil pressure should be 25 PSI at operating temperature. At 21 PSI, the phasers won't have enough pressure to function properly. I believe the older 2V had a minimum pressure of 20 PSI, which is where I would suspect the other components will start malfunctioning.
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Tuned
Joined: Mar 2005
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From: Mesa AZ
At hot idle I'm seeing a minimum reading of ~28 psi. At 2000 rpm, I'm in the mid 50s.
It does dip closer to 25 psi when you first let off some the throttle from 2000 rpm.
They are running the recommended 5w-20. Should it run 5-30 for the remainder of its life?
It looks like it would be a safe bet to replace the chains, guides, tensioners , & phasers.
Maybe I will get lucky at the tensioners will be leaking and causing some of the lower pressure.
It does dip closer to 25 psi when you first let off some the throttle from 2000 rpm.
They are running the recommended 5w-20. Should it run 5-30 for the remainder of its life?
It looks like it would be a safe bet to replace the chains, guides, tensioners , & phasers.
Maybe I will get lucky at the tensioners will be leaking and causing some of the lower pressure.
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Tuned
Joined: Mar 2005
Posts: 479
Likes: 0
From: Mesa AZ
Going to go ahead with the work. New chains, guides, tensioners, phasers, timing cover gaskets & seal, valve cover gaskets, ignition coil pig tails, and a couple of injector pig tails.
The oil will be changed to 5w-30.
Hopefully they have learned their lesson.
Oh who am I kidding.
The oil will be changed to 5w-30.
Hopefully they have learned their lesson.
Oh who am I kidding.
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Tuned
Joined: Mar 2005
Posts: 479
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From: Mesa AZ
Finally made some headway. Between being sick, the family being sick, and work, I havent had any time to mess with it. got the cover off tonight. The timing guide was broke on both sides, One was actually in pieces rattling around. Both chains are very loose depending on where you are in the rotation. Hope to start reassembly tomorrow.
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Fleet Owner
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Somebody owes you a huge birthday present next time around.
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Joined: Apr 2014
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From: Skiatook, OK
Be sure all the pieces are out! This happened to my vehicle under a previous owner, and they did not chase down all the loose pieces. two chunks got into an oil passage, starved the heads of oil and ruined both heads and cams. You'll probably have to drop the oil pan in order to find the pieces that drop straight down. At least that's what I had to do...
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Tuned
Joined: Mar 2005
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From: Mesa AZ
DONE
Finished the truck up last night. She sounds great. Nice and quiet,tons of power, and no longer has any check engine lights. Ended up replacing 5 of the cop pigtails and 3 injector pig tails.
Ran it for close to half an hour with the oil pressure gauge on it. Cold It maintains 65-70 psi. Hot was a steady 38 psi.
Currently has fresh 5w-30 and filter in it. Gonna have the change it again in 100 miles or so.
This poor truck was hungry. The timing chain tried to eat the cover.
How do I attach pictures on here? I don't see the option like I have on other forums.
Ran it for close to half an hour with the oil pressure gauge on it. Cold It maintains 65-70 psi. Hot was a steady 38 psi.
Currently has fresh 5w-30 and filter in it. Gonna have the change it again in 100 miles or so.
This poor truck was hungry. The timing chain tried to eat the cover.
How do I attach pictures on here? I don't see the option like I have on other forums.
