Go Back   Ford Truck Enthusiasts Forums > Older, Classic & Antique Trucks > 1987 - 1996 F150 & Larger F-Series Trucks
Sign in using an external account
Register Forgot Password?


1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 08-03-2014, 03:55 PM
JonEB JonEB is offline
New User
 
Join Date: Feb 2007
Posts: 8
JonEB is starting off with a positive reputation.
Misfire Cylinder 1 7.5l P0301

Check engine light came on recently with code P0301. "Cylinder one misfire" I switched wires with adjacent plug (and at distributor cap) reset code, and same code popped up next day. Replaced cap, rotor and #1 spark plug and reset code: same code popped up. Did a compression test on #1 cylinder: 120 lbs which held constant for 10 minutes. (new spark plug doesn't even look like its' seen one explosion in the cylinder - white porcelain and shiny metal after the 40 mile test drive to work and back).
Could it be the injector? ( it ohmed out at 5.7)

Thanks FTE team for any help here.
Reply With Quote
  #2  
Old 08-03-2014, 06:18 PM
projectSHO89 projectSHO89 is offline
Post Fiend
 
Join Date: Jan 2004
Location: St Louis
Posts: 9,379
projectSHO89 has much to be proud ofprojectSHO89 has much to be proud ofprojectSHO89 has much to be proud ofprojectSHO89 has much to be proud ofprojectSHO89 has much to be proud ofprojectSHO89 has much to be proud ofprojectSHO89 has much to be proud ofprojectSHO89 has much to be proud ofprojectSHO89 has much to be proud of
What are you working on?
__________________
2001 F250 SD V10 4x4
HVAC FAQs: http://www.ford-trucks.com/forums/75...xpedition.html
Owner's manuals: http://www.fleet.ford.com/maintenance/owner-manuals/
It is better to keep your mouth closed and let people think you are a fool than to open it and remove all doubt.” - Mark Twain
Reply With Quote
  #3  
Old 08-03-2014, 09:21 PM
JonEB JonEB is offline
New User
 
Join Date: Feb 2007
Posts: 8
JonEB is starting off with a positive reputation.
1997 F250 crew cab with 7.5l (460 cubic inch) gas.
Reply With Quote
  #4  
Old 08-04-2014, 06:34 AM
redford's Avatar
redford redford is offline
Moderator
 
Join Date: Sep 2000
Location: Hooterville WI
Posts: 16,059
redford has a spectacular reputation.redford has a spectacular reputation.redford has a spectacular reputation.redford has a spectacular reputation.redford has a spectacular reputation.redford has a spectacular reputation.redford has a spectacular reputation.redford has a spectacular reputation.redford has a spectacular reputation.redford has a spectacular reputation.redford has a spectacular reputation.
Moved to 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks forum
__________________

2007 F-250 Super Cab Short Bed 4x4 XLT Sport Package 5.4L 3.73LS Tow Command

Stuart
Retired Master Sergeant

FTE Guidelines
Reply With Quote
  #5  
Old 08-04-2014, 07:38 AM
dixie460's Avatar
dixie460 dixie460 is offline
Posting Guru
 
Join Date: Nov 2011
Location: SW Florida
Posts: 2,005
dixie460 has a good reputation on FTE.dixie460 has a good reputation on FTE.
Are your plug wires routed correctly and not crossing all over each other? There is actually a recommended routing for them... I've always just run them nice and neat and never had a problem.

I do remember one time I had old plug wires that were failing and causing a misfire under load, but otherwise ran fine at idle and cruise. How old are your wires?
__________________
96 F-150 SCSB - 351W - E4OD - Manual 4x4 - MileMarker Hubs - 3.55 Gears - 31x10.50x15 Falken All-Terrains - York 210 Air Compressor - 130A Alternator - Badlands 12K Winch - Dual Thrush Glasspacks - LED Headlights
Reply With Quote
  #6  
Old 08-04-2014, 12:18 PM
JonEB JonEB is offline
New User
 
Join Date: Feb 2007
Posts: 8
JonEB is starting off with a positive reputation.
Quote:
Originally Posted by dixie460 View Post
Are your plug wires routed correctly and not crossing all over each other? There is actually a recommended routing for them... I've always just run them nice and neat and never had a problem.

I do remember one time I had old plug wires that were failing and causing a misfire under load, but otherwise ran fine at idle and cruise. How old are your wires?
My wires are about 3 months old and higher quality than the budget set. I do however need to clean up the routing with some guides though. I'll try that.
Reply With Quote
  #7  
Old 08-04-2014, 01:33 PM
BoKnowsDiesel's Avatar
BoKnowsDiesel BoKnowsDiesel is online now
SPONSOR
 
Join Date: May 2014
Location: Central Ohio
Posts: 205
BoKnowsDiesel is gaining momentum as a positive member of FTE.
The injector should be between 11-18 ohms, so replace the injector
__________________
Hot Shot's Secret - Powered by Science! Visit our website
Reply With Quote
  #8  
Old 10-30-2014, 11:39 AM
JonEB JonEB is offline
New User
 
Join Date: Feb 2007
Posts: 8
JonEB is starting off with a positive reputation.
Update: P0301 Misfire Code FIXED!

Thanks to all of the FTE Community help on this one. Replaced the injectors and misfire went away, now she's running smooth, climbing grades AND getting better fuel economy. Best part; bought the injectors for $100 rebuilt on EBay.
Here's a link: injectordyne | eBay

Success!
JonEB
Reply With Quote
Old 10-30-2014, 11:39 AM
 
 
 
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
DTC P0171 and P0301 - Suggestions? Pinzer Modular V10 (6.8l) 10 07-15-2011 03:18 AM
Diagonosing engine trouble codes Pinzer Modular V10 (6.8l) 1 09-06-2009 01:41 PM
2000 Ranger 3.0L misfire Cylinder #1 AND #5 majoiner 3.0L V6 4 06-16-2008 08:51 AM
Stupid question...cylinder #1 on 4.6 engine jlmotox 1997 - 2003 F150 4 01-08-2008 02:11 PM
Help troubleshooting P0301 on 97 4.2L F150 prega 1997 - 2003 F150 6 01-04-2007 06:51 AM


Go Back   Ford Truck Enthusiasts Forums > Older, Classic & Antique Trucks > 1987 - 1996 F150 & Larger F-Series Trucks

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 01:39 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. Ford® is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup