Go Back   Ford Truck Enthusiasts Forums > Performance, Engines & Troubleshooting > Modular V8 (4.6L, 5.4L)
Sign in using an external account
Register Forgot Password?


Welcome to Ford-Trucks Forums!
Welcome to Ford-Trucks.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Ford-Trucks Forums community today!





 
Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 05-08-2014, 08:09 PM
8092shrtbx 8092shrtbx is offline
New User
 
Join Date: Apr 2014
Posts: 12
8092shrtbx is starting off with a positive reputation.
injector question??

first off hello to everyone. i just bought my first ford.1998 F250 4x4 5.4 engine.
ok well the guy i picked up the truck from, said that the truck sat for 3 years. he took it to the shop cause it ran rough. shop puts plugs in it and informs that the injectors are going bad.maybe im just lucky cause ive never had to deal with injectors. so i thought id ask yall how often do injectors go bad. truck does throw a P0304 and a P0455 codes. How can you tell what is misfiring? i was really thinking about just going and doing injectors coils and plugs all brand new.
Reply With Quote
  #2  
Old 05-09-2014, 06:10 PM
kermmydog's Avatar
kermmydog kermmydog is offline
ALIEN FTE AZ CL
 
Join Date: Oct 2003
Location: OUTERSPACE, SOMEWHERE
Posts: 8,229
kermmydog has a spectacular reputation.kermmydog has a spectacular reputation.kermmydog has a spectacular reputation.kermmydog has a spectacular reputation.kermmydog has a spectacular reputation.kermmydog has a spectacular reputation.kermmydog has a spectacular reputation.kermmydog has a spectacular reputation.kermmydog has a spectacular reputation.kermmydog has a spectacular reputation.kermmydog has a spectacular reputation.
WELCOME to FTE.
The 304 code is a #4 cylinder misfire not sure of the 455 you can look it up. First thing I would do is dump a can of Seafoam in the gas tank & run it & see if it clears anything up after driving it a while. Seafoam will clean the injectors.
I've never had an injector go bad on me. But I guess they can. But if this truck sat drive it & see if any of this clears up with use. Check on the PO455 code.
__________________
Ford Space Ship to get to Earth
When Here:
1999 Ford P71
1995 Ford F150 4x4
Reply With Quote
  #3  
Old 05-09-2014, 10:56 PM
8092shrtbx 8092shrtbx is offline
New User
 
Join Date: Apr 2014
Posts: 12
8092shrtbx is starting off with a positive reputation.
the 455 code is evap faulty gas cap
Reply With Quote
  #4  
Old 05-10-2014, 09:24 PM
je5 je5 is offline
Senior User
 
Join Date: May 2006
Posts: 226
je5 is starting off with a positive reputation.
If a vehicle has been sitting for three years the fuel tank must be cleaned and new fuel added before using the starter on a fuel injected engine. You may be able to take the injectors to an injection shop and have them cleaned and tested. Replace fuelish filter and flush fuel rail before starting with clean injectors.
Reply With Quote
  #5  
Old 05-11-2014, 11:17 AM
8092shrtbx 8092shrtbx is offline
New User
 
Join Date: Apr 2014
Posts: 12
8092shrtbx is starting off with a positive reputation.
je5, yes thats what i would have done for sure, but unfortunately thats not what the PO did he just fired her up.so i think im just gonna go get new injectors coils and plugs. start over from scratch so i know everything is new and working properly. dont really want the headache of fixing one then have another go bad and have to pull everything apart to do it over. i have already ordered my MSD coil packs . on friday ill get injectors. can anyone recommend injectors ? stock or aftermarket ? been looking at the bosch GEN III injectors. say they have better atomization witch results in better fuel mileage and performance. my buddy told me he has some 21lb injectors but i thought stock injectors were 19lb will this make a difference ?
Reply With Quote
  #6  
Old 05-11-2014, 04:34 PM
je5 je5 is offline
Senior User
 
Join Date: May 2006
Posts: 226
je5 is starting off with a positive reputation.
I prefer those parts be factory for reliability.

Make sure fuel system is clean so it will not contaminate your new injectors.
Reply With Quote
  #7  
Old 05-12-2014, 01:14 AM
8092shrtbx 8092shrtbx is offline
New User
 
Join Date: Apr 2014
Posts: 12
8092shrtbx is starting off with a positive reputation.
je5 and kermmydog thanks for all your advice ill post back with results.

je5 i know what your talking about with factory parts as most are far superior. with all the posts about COP failure im not really seeing the factory reliability here. im not trying to be a jerk by that statement just talking.ive always had good results with MSD products, so my choice kinda lies in that direction. as for injectors? ill see what i can drum up ?? ive always been the one to play with things this is just my first ford ive ever had in my 25 years of driving
Reply With Quote
Old 05-12-2014, 01:14 AM
 
 
 
Reply

Go Back   Ford Truck Enthusiasts Forums > Performance, Engines & Troubleshooting > Modular V8 (4.6L, 5.4L)

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

Similar Threads
Thread Thread Starter Forum Replies Last Post
injector replacement maxtruck00 6.0L Power Stroke Diesel 10 06-05-2014 07:25 AM
Injector install rip-off!? Screamin T/A 6.0L Power Stroke Diesel 37 08-27-2012 12:21 PM
Troubleshooting my list of DTC's fixxxer-upper 6.0L Power Stroke Diesel 14 12-30-2011 09:53 PM
bad fuel injector? hatchet 1987 - 1996 F150 & Larger F-Series Trucks 9 09-04-2010 07:11 AM
DTC P2196 and P0201 chadbostwick 2004 - 2008 F150 2 07-23-2010 05:32 PM



All times are GMT -5. The time now is 03:44 PM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - 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. FordŽ is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup