Notices
1999 - 2016 Super Duty 1999 to 2016 Ford F250, F350, F450 and F550 Super Duty with diesel V8 and gas V8 and V10 engines
Sponsored by:
Sponsored by: Real Truck

2003 f250 engine replacement

Thread Tools
 
Search this Thread
 
Old Jul 16, 2017 | 09:34 PM
  #1  
Driverlarry82's Avatar
Driverlarry82
Thread Starter
|
New User
Joined: Jul 2017
Posts: 2
Likes: 0
2003 f250 engine replacement

2003 with 5.4 2valve.
Well the time has come, with 226000 miles my truck dropped compression in at least one cylinder. I am debating what to replace it with. I will be doing the work myself so labor won't be a problem.
I have about $2000 to work with,
option 1- factory used with a good warranty
option 2- switch to a 3valve
option3 - navigator dohc swap
 
Reply
Old Jul 17, 2017 | 05:52 AM
  #2  
redford's Avatar
redford
FTE Leadership Emeritus
25 Year Member
Liked
Loved
Community Favorite
Joined: Sep 2000
Posts: 23,174
Likes: 1,679
From: Stephensville WI
Club FTE Gold Member
Have you done a compression test and a leak down test on the engine yet? What you think is an engine swap may be a simple and inexpensive repair.

As for the swap idea, either would bolt in but finding electronics to control the engine and transmission may be difficult. In my mind, I am not sure the gain would be worth the expense.
 
Reply
Old Jul 17, 2017 | 05:58 AM
  #3  
Driverlarry82's Avatar
Driverlarry82
Thread Starter
|
New User
Joined: Jul 2017
Posts: 2
Likes: 0
I have been chasing a miss for the last few months and did a compression test last week. Cylinder 7 was at 20psi, gave it a shot of oil and it jumped to 130. Didn't leak down at all.
 
Reply
Old Jul 17, 2017 | 06:37 AM
  #4  
Chuck's First Ford's Avatar
Chuck's First Ford
Postmaster
Joined: Jul 2015
Posts: 4,392
Likes: 22
From: very South Texas
retest that cylinder after running engine for 10 minutes (HOT)...

could be just a stuck piston ring..

as for engine swap... keep with same type and year... unless you plan on going with aftermarket computer system.

fyi, back in the day.. I ran a straight 6 engine on 5 cylinders due to a cracked piston...
it drove for 2 more years. 1 year for me.. and 1 year for my little brother.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
ericthor
1973 - 1979 F-100 & Larger F-Series Trucks
9
Nov 9, 2016 12:25 PM
CaseynWall
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
3
Jan 17, 2010 12:46 PM
muscletruck7379
Performance & General Engine Building
2
Apr 26, 2007 09:29 PM
buckeyebronco
Small Block V8 (221, 260, 289, 5.0/302, 5.8/351W)
1
Nov 13, 2003 03:05 AM




All times are GMT -5. The time now is 10:28 AM.

story-0
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

Slideshow: The VelociRaptor Expedition gains a lift, upgraded suspension, Brembo brakes, and trail-ready equipment while retaining the stock 440-horsepower EcoBoost V6.

By Verdad Gallardo | 2026-06-12 11:01:55


VIEW MORE
story-1
Top 10 Fords at 2026 Carlisle Ford Nationals

Slideshow: Top 10 Fords at 2026 Ford Nationals

By Joe Kucinski | 2026-06-09 11:10:08


VIEW MORE
story-2
3 Best / 3 Worst Parts of Modern Ford Ownership

Based on years of owning multiple modern Ford products.

By Brett Foote | 2026-06-09 10:53:36


VIEW MORE
story-3
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

SPONSORED: From muddy boots to rain-soaked cargo, these upgrades address some of the most common frustrations Ford truck owners face every day.

By Pouria Savadkouei | 2026-06-08 18:50:34


VIEW MORE
story-4
Every 2026 Ford Engine Explained

Here's everything you need to know about every Ford engine available for the 2026 model year.

By Brett Foote | 2026-06-05 12:58:01


VIEW MORE
story-5
10 Ugly Ford Trucks That We Still Kinda Love

Slideshow: 10 ugly Ford trucks that we still kinda love.

By Joe Kucinski | 2026-06-03 09:51:16


VIEW MORE
story-6
10 Things Every Truck Owner NEEDS (2026 Edition)

Slideshow: the best gifts for dads & grads

By Michael S. Palmer | 2026-06-03 15:43:58


VIEW MORE
story-7
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-06-03 11:38:36


VIEW MORE
story-8
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.

By Joe Kucinski | 2026-05-27 16:24:34


VIEW MORE
story-9
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Here's everything that has changed for the latest model year.

By Brett Foote | 2026-05-27 16:17:28


VIEW MORE