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May 27, 2026 | 12:18 PM

#31

bismic

Fleet Owner

Joined: Nov 2003

Posts: 27,929

Likes: 3,651

Corrosion. Some places are much worse than others .................. Some sources of fuel (water) are much worse than others.

May 27, 2026 | 05:52 PM

#32

4Kids

The Struggle Bus¯\_(ツ)_/¯

Joined: Jan 2022

Posts: 695

Likes: 310

Good point, because it would likely be internal corrosion and not obvious. Thanks!

May 28, 2026 | 06:37 AM

#33

TooManyToys.

Hotshot

Joined: Dec 2014

Posts: 17,838

Likes: 3,138

From: Jersey Shore

Yeah, sitting that long, there could be a lot of debris in the chamber, the steel plug could be rusted, and he needs to remove the fuel heater.

May 28, 2026 | 10:17 AM

#34

joe blow

Logistics Pro

Joined: May 2004

Posts: 3,612

Likes: 883

Quote:

Originally Posted by bismic

Still doing well with that DieselSite HPOP @joe blow ? How many miles on it?

My original pump is still in the truck @ 140k, I never changed it.

I kick myself at this point for not changing it when I had the engine on the stand, but that was @90k and I decided against the expense.

May 28, 2026 | 11:24 AM

#35

bismic

Fleet Owner

Joined: Nov 2003

Posts: 27,929

Likes: 3,651

So much for my memory, lol. I thought you "took the leap"!

Appreciate the response!

May 28, 2026 | 12:50 PM

#36

AL`

Tuned

Joined: Feb 2016

Posts: 259

Likes: 75

Quote:

Originally Posted by TooManyToys.

I have no experience with that cover. I'm good with my stock cover and the LFC drain plug.

By LFC drain plug, are you referring to the upgrade plug, part # 6E7Z-9C082-A ?
That's what I have. Little bugger is more expensive now than I recall.
$49 on Amazon. But it beats the original stock drain plug, especially on a 4x4.

May 28, 2026 | 09:12 PM

#37

Fuzzpuss

Cargo Master

Joined: Nov 2015

Posts: 3,431

Likes: 949

From: Fort Worth, TX

Like Jack said, clean the turbo. If the truck has been sitting a long time, the unison ring is probably seized.

If changing the HPOP, also replace the J-tube, aka discharge tube

Other upgrades and/or longevity opportunities:
- 6.4 trans pan and filter
- harpoon fuel tank
- check driveshaft carrier bearing/bushing
- upgraded battery and ground cables

Jun 5, 2026 | 09:22 AM

#38

Dougger1957

Thread Starter

Trailering

Joined: Apr 2026

Posts: 22

Likes: 11

Got my truck back. Taking it on a 250-mile run to see how it does. I will report on it later.

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Jun 8, 2026 | 12:59 PM

#39

Dougger1957

Thread Starter

Trailering

Joined: Apr 2026

Posts: 22

Likes: 11

It ran great! Unlimited Diesel Performance gave it a light tune. More responsive than before. Sounds great. Easy start. Filled the tank and drove 312.3 miles. Filled the tank again with 15.3 gallons. That's 20.4 mpg. Kept the rpms just under 2000. Doing about 69-70 mph. Very happy. That was without cruise control. Unfortunately, the cruise control shuts off on any upgrade. It was fine on flat surfaces and downgrades. I suspect the brake pedal switch. What are your thoughts?

Jun 8, 2026 | 07:31 PM

#40

runthatjunk

More Turbo

Joined: Nov 2009

Posts: 530

Likes: 278

From: Kansas

Sounds reasonable, check the pressure switch connector on master cylinder for presence of brake fluid too. If remember correctly that can be a thing on these years

Jun 14, 2026 | 09:19 PM

#41

DoOver

Cross-Country

Joined: Sep 2008

Posts: 97

Likes: 22

From: Catskill Mountains Of NY

Quote:

Originally Posted by Fuzzpuss

What is the reason for the 2008-2010 6.4 transmission filter and pan, as it relates to a 2003 6.0 F250?

Jun 15, 2026 | 07:08 AM

#42

Fuzzpuss

Cargo Master

Joined: Nov 2015

Posts: 3,431

Likes: 949

From: Fort Worth, TX

Quote:

Originally Posted by DoOver

What is the reason for the 2008-2010 6.4 transmission filter and pan, as it relates to a 2003 6.0 F250?

The "filter" on our trucks is a coarse screen, whereas the 6.4 is a pleated filter that collects very fine particles. It is also a bit larger, which is why you have to replace the pan. It is considered a major upgrade and highly endorsed by our resident transmission specialist, Mark Kovalsky.

https://www.ford-trucks.com/forums/1...-filter-3.html

Jun 15, 2026 | 11:32 AM

#43

DoOver

Cross-Country

Joined: Sep 2008

Posts: 97

Likes: 22

From: Catskill Mountains Of NY

Quote:

Originally Posted by Fuzzpuss

How about the 'secondary' filter up towards the front end, change that to a 6.4 style one also?

And thank you.

Jun 15, 2026 | 12:29 PM

#44

TooManyToys.

Hotshot

Joined: Dec 2014

Posts: 17,838

Likes: 3,138

From: Jersey Shore

That can be left in place. The 6.4L doesn't have it; its in-pan filter replaces it. But if you want to do away with it, you have to do more work and replace the housing with tubing. IMO, I'm leaving it in place.

My video on the subject: