Go Back   Ford Truck Enthusiasts Forums > Newer Light Duty Trucks > Expedition & Navigator
Sign in using an external account
Register Forgot Password?


Expedition & Navigator 1997 - 2002 and 2003 - 2006 Ford Expedition and Lincoln Navigator SPONSORED BY:

2003 5.4 tune up

Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 07-19-2009, 05:16 PM
02black250 02black250 is offline
New User
 
Join Date: Nov 2004
Posts: 19
02black250 is starting off with a positive reputation.
2003 5.4 tune up

2003 Expy 5.4 w/160,000 miles runs well. I have owned for past 20,000. I want to do a tune up on it, what all should be done? I am thinking: New spark plugs, new fuel injectors...what else? I pull a 7,000lbs. 27ft. travel trailer with it and it only gets about 6mpg, is this normal? Going to be making a long pull to Orlando from Atlanta in September want everything to be A+.
Reply With Quote
  #2  
Old 07-20-2009, 11:51 AM
bnovak bnovak is offline
Senior User
 
Join Date: Jun 2009
Posts: 336
bnovak is starting off with a positive reputation.
1 - Plugs
2 - Coils
3 - Injectors

I just did all 3 and (getting parts from random ebay sources) kept cost under $200. They kinda all need to be done at the same time.

Also, get some throttle body cleaner, take the TB off and clean it really well. Mine was gummed up something fierce and would whistle at idle, cleaned it, all better.

you might also need to clean or replace the exhuast gas recirculating valve (Autozone or ebay again)

Here's the plug / injector writeup.
http://www.ford-trucks.com/forums/10...ark-plugs.html
__________________
'98 EB Expedition
'08 Mazda MX-5 w/ Cosworth Supercharger
'69 Mach1 Mustang
'40 Chevy Pickup rust bucket project
'79 Wetbike * '94 Waveblaster Jetski's, & the boat
EnrollerConnect.Com - Stay busy with your insurance license this year!
Reply With Quote
  #3  
Old 07-20-2009, 05:08 PM
MOOK929RR's Avatar
MOOK929RR MOOK929RR is offline
Senior User
 
Join Date: Jun 2004
Posts: 423
MOOK929RR is starting off with a positive reputation.
air filter, and fuel filter too... if ur not sure when the last time ur tranny fluid and filter were changed, i would do that too.
Reply With Quote
  #4  
Old 07-22-2009, 04:01 PM
mluz mluz is offline
New User
 
Join Date: Aug 2006
Posts: 10
mluz is starting off with a positive reputation.
Quote:
Originally Posted by bnovak View Post
1 - Plugs
2 - Coils
3 - Injectors

I just did all 3 and (getting parts from random ebay sources) kept cost under $200. They kinda all need to be done at the same time.

Also, get some throttle body cleaner, take the TB off and clean it really well. Mine was gummed up something fierce and would whistle at idle, cleaned it, all better.

you might also need to clean or replace the exhuast gas recirculating valve (Autozone or ebay again)

Here's the plug / injector writeup.
http://www.ford-trucks.com/forums/10...ark-plugs.html
What are you thoughts on the ebay parts?

Can you post some links to these sellers, if you are happy with results.
Reply With Quote
  #5  
Old 07-22-2009, 05:39 PM
02black250 02black250 is offline
New User
 
Join Date: Nov 2004
Posts: 19
02black250 is starting off with a positive reputation.
Quote:
Originally Posted by mluz View Post
What are you thoughts on the ebay parts?

Can you post some links to these sellers, if you are happy with results.

I was also wondering this. What kind of quality are the parts? I sort of believe you get what you pay for, to an extent.
Reply With Quote
  #6  
Old 07-22-2009, 11:41 PM
bnovak bnovak is offline
Senior User
 
Join Date: Jun 2009
Posts: 336
bnovak is starting off with a positive reputation.
Well, as for the ebay parts, everything is working as expected so I've got no complaints so far!

Injectors from lucky7autoinjectors

Coils from uneeksupply

both have 99%+ rating. Should be able to find both of them with a search on ebay.
__________________
'98 EB Expedition
'08 Mazda MX-5 w/ Cosworth Supercharger
'69 Mach1 Mustang
'40 Chevy Pickup rust bucket project
'79 Wetbike * '94 Waveblaster Jetski's, & the boat
EnrollerConnect.Com - Stay busy with your insurance license this year!
Reply With Quote
  #7  
Old 07-23-2009, 10:44 AM
mluz mluz is offline
New User
 
Join Date: Aug 2006
Posts: 10
mluz is starting off with a positive reputation.
Quote:
Originally Posted by bnovak View Post
Well, as for the ebay parts, everything is working as expected so I've got no complaints so far!

Injectors from lucky7autoinjectors

Coils from uneeksupply

both have 99%+ rating. Should be able to find both of them with a search on ebay.
Found them and placed and order with both.

Thanks for the help.
Reply With Quote
Old 07-23-2009, 10:44 AM
 
 
 
Reply


Similar Threads
Thread Thread Starter Forum Replies Last Post
On Vacation, Need Help copsey 6.0L Power Stroke Diesel 40 01-30-2014 06:52 PM
Emergency Fuel Shutoff Question TES 1997 - 2003 F150 2 04-18-2011 03:25 PM
From PA member, need a little help. BEAST428 Florida Chapter 3 01-03-2011 09:59 PM
Where to put DP-tuner switch?? jpcjguy Excursion - King of SUVs 4 11-14-2009 07:01 PM
My 5.4L has a defective piston BuckyBuck Performance & General Engine Building 3 01-21-2003 05:22 PM


Go Back   Ford Truck Enthusiasts Forums > Newer Light Duty Trucks > Expedition & Navigator

Tags
2003, 2009, 54, 98, clean, engine, expedition, f150, ford, injectors, liter, lucky7autoinjectors, parts, tune, tuneup

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump


Participate In The Forums

Create new posts and participate in discussions. It's free!

Sign Up »


All times are GMT -5. The time now is 05:14 PM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - Terms of Service - Jobs
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Ford® is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup