5.4, 3 valve.. Rough idle - Ford Truck Enthusiasts Forums

2004 - 2008 F150 2004, 2005, 2006, 2007 and 2008 Ford F150's with 5.4 V8, 4.6 V8 engine

5.4, 3 valve.. Rough idle

Thread Tools Search this Thread
Old 06-11-2014, 10:48 PM
Milly1219 Milly1219 is offline
New User
Thread Starter
Join Date: Jun 2014
Posts: 2
Milly1219 is starting off with a positive reputation.
5.4, 3 valve.. Rough idle

My 05 had plug change yesterday, 5 out of 8 broke..still idling very rough. When I first start it when it's cold it runs fine. When it gets to operating temperature is when it idles very rough at 750 rpm. If I give a bit of gas to 1000 rpm it smartens up. Any thoughts, advice ?
Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
7.5L only runs for 25 minutes... what's wrong? Algoa 1987 - 1996 F150 & Larger F-Series Trucks 17 10-06-2016 08:20 PM
Rough idle Meats12 1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks 15 05-16-2016 10:34 PM
Rough idle, throttle does nothing mountain dewd 1973 - 1979 F-100 & Larger F-Series Trucks 6 03-14-2016 11:13 PM
V10 rough idle and low rpm SuperDutyKS01 1999 to 2016 Super Duty 1 05-15-2009 09:58 PM
Rough Idle at 1000 RPM kenf1948 1999 - 2003 7.3L Power Stroke Diesel 13 09-20-2002 09:19 PM

Go Back   Ford Truck Enthusiasts Forums >

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 Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

All times are GMT -5. The time now is 07:22 PM.

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.