mikeaj92

I have read many posts on which 5.4 is best. But can someone explain why? From say 2005 to 2007 what made the engine better (ie phaser).
the TSB only references up to 2005, unless I can't find another one. The TSB does read to compare to a new engine after May 2005. But what design and why??


also say a truck is a 06 but made in August of 06.. Does it have anything from an 07....because you can find August 07's too.

thanks guys

nrivera04

redfishtd

You can't get this from ford TSB's . Granted some parts had been revised at the last year .It is more important to know what new parts and preventives you can do. Don't do extended oil changes ,don't go past 60k on plugs . Get that oil out of there in 4 months even if its holy oil and 10 below zero outside . Stay current on new parts such as the new 340hv oil pump that just came out in the fall of 2017 . Don't use heavy oil to mask engine noise ,5w-30 syn or below okay .
Think about using torque pro and a bluetooth reader with your android . If you do timing don't use plastic tensioners,don't use dorman phasers .

Humantorch

If you plan on buying a 5.4 go to sams club and buy a bulk amount of cam phasers and solenoids. You're gonna need em.

nathan3306

Late 07-17. Revised heads for better sparkplug changes and everything else previously mentioned. I have an 04 built in 03 and so far the only thing timing wise I've had to change is the VTC solenoids. My chain tensioners are on their way out so I will be doing those soon along with the upgraded oil pump.... probably everything else in there as well. She has 147K miles running 5w-20 her whole life and switched to full synthetic around 109K I believe.

CKsBAT

I have a 2005 and appreciate that I don't have to take the valve cover off to check/replace the solenoids. Other than that, a bit frustrating that I had to replace the radiator because Ford didn't isolate it and it rubbed through. Which ever you get do 3000 mile oil changes and go with 5/30 oil. I'll get slammed for the 3000 interval, but the valve train took a dump at 100k and I did 5k oil changes religiously.

techrep

iTrader: (1)

nathan3306

Ford Expedition

650NutKase

I have an 08 and feel that I got the best in regards to updates and reliability. I have 135k with no issues. However, I have also seen 08's fail with under 120k and 04-05's (The "problem" years) go over 200k with just maintenance. This is really the key, maintenance.

PDX1953

I recently purchased a 2wd 2005 F-150 with under 59,000 miles from the late owner's estate. I have all of the service invoices (always had it maintained by the dealer) as well as the factory window sticker & bill of sale. I'm having the plugs replaced soon with Motorcraft SP-546's since they're the latest version. I also added 4 cans of Seafoam to a full tank (36 gallons) to hopefully help get rid of some carbon build up on the plugs. I'll have the oil & filter replaced at the same time & Mobil 1 goes on sale at Costco beginning on the 23rd.

I swear by 100% Synthetic Mobil 1 and Mobil 1 oil filters. My 2003 FWD 3L Escape had 257,000 miles on my when I traded it in on a Flex. I commuted 600 miles a week for years & never had any internal engine issues. The trans failed once and I went as long as 12k between oil changes although that was a one time occurrence. I normally went 8k & always kept an eye on the air filter.

I know there are people who do oil changes at 3000 miles or every 90 days but I think the best advice regarding oil changes was from Click-n-Clack on NPR. They said "Follow the instructions in the owner's manual" although that was before synthetic oil became the norm for many of us.

There's an interesting video on the differences between petroleum & synthetic oil . I skipped past a bunch of the graphs but found it interesting - you may as well.