Go Back   Ford F150 Forum - Community of Ford Truck Fans > Ford F150 Forums > Maintenance Shop
Sign in using an external account
Register Forgot Password?
Register Garage Photos FAQ Members List Social Groups Calendar Search Today's Posts Mark Forums Read StoreVendor Directory

Welcome to F150 Forum!
Welcome to F150 Forum,

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, 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 free, fast and simple, so please join our community today!


Reply
 
 
 
 
Thread Tools Search this Thread Display Modes
Old 12-17-2011, 11:23 AM   #1
Roving Mechanic???
 
Join Date: Dec 2011
Location: Minnesota
Posts: 7
Mentioned: 0 Post(s)
Thanks: 1
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default '97 F-150, 4.6L running rough at idle?

I drive a '97 F-150 with a 4.6 liter, auto 4X4.

The engine runs rough when in drive at stop lights. Usually tends to act like it wants to stall, but after 30-40 seconds, it clears up and begins to run rough again after 15-20 seconds. It acts like the idle air control valve needs some help? Any thoughts?

Thanks.
Chilly-Willy is offline   Reply With Quote
Old 12-17-2011, 11:34 AM   #2
Senior Member
 
Austin97's Avatar
 
Join Date: Feb 2011
Location: MD
Posts: 2,061
Mentioned: 0 Post(s)
Thanks: 0
Thanked 7 Times in 7 Posts
Feedback Score: 0 reviews
Default

I'd say so. You can try taking it off and cleaning it to see if it helps. Usually doesn't cause the actual solenoid is what goes bad most of the time. A test it to whack it with a wrench while it's idling crappy to see if it clears up when you hit it.
__________________
'97 F-150 4.6L 5-speed Off-road: PI head swap, 3.8L Taurus E-fan w/DCC controller, VMP Tuning custom tunes with SCT X3, Pacesetter shorties, Gotts mod, 3" body lift, 285/70/17 Nitto Crossteks, Expedition front brake swap, Herculiner two-tone, 2-6" driving lights behind billet grille, 2-10" subs under rear seat.
Austin97 is offline   Reply With Quote
Old 12-17-2011, 11:43 AM   #3
Roving Mechanic???
 
Join Date: Dec 2011
Location: Minnesota
Posts: 7
Mentioned: 0 Post(s)
Thanks: 1
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default

Thanks. Great idea.
Chilly-Willy is offline   Reply With Quote
Old 12-21-2011, 07:26 PM   #4
Junior Member
 
Join Date: Dec 2008
Posts: 3
Mentioned: 0 Post(s)
Thanks: 1
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default rough idle

Clean the Throttle body by removing it carefully and take all of the sensors off. IAC TPS and clean it with throttle body spray. Get it nice and clean reinstall it then disconnect the battery for a minute or so then reconnect and it should be all good.
foesrider is offline   Reply With Quote
Old 12-21-2011, 08:09 PM   #5
Senior Member
 
papa tiger's Avatar
 
Join Date: Nov 2011
Posts: 3,906
Mentioned: 0 Post(s)
Thanks: 58
Thanked 51 Times in 50 Posts
Feedback Score: 0 reviews
Thumbs up

Quote:
Originally Posted by Chilly-Willy View Post
I drive a '97 F-150 with a 4.6 liter, auto 4X4.

The engine runs rough when in drive at stop lights. Usually tends to act like it wants to stall, but after 30-40 seconds, it clears up and begins to run rough again after 15-20 seconds. It acts like the idle air control valve needs some help? Any thoughts?

Thanks.

Run a couple cans of Isopropyl alcohol / the red gas line antifreeze thru the tank to remove ice moisture. See if it helps it a lot. Ice starts this way, killing the motor and cutting off the power.
papa tiger is online now   Reply With Quote
Old 12-21-2011, 08:09 PM
 
 
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Rough idle and rough running ColtRice17 1997 - 2003 Ford F150 2 10-20-2011 02:30 AM
5.4 Low idle RPMs= Rough running craigt502 8 Cylinder Engines 1 03-28-2010 12:55 PM
Rough Idle and when Running Duke0916 General F150 Discussion 9 02-12-2010 06:17 PM
02 running rough at idle 02flaresidesport 1997 - 2003 Ford F150 2 04-06-2009 07:32 PM
04' 5.4 running rough at idle uaw1111 Engine / Drivetrain Talk 13 03-31-2009 09:56 PM

 

The Mustang Source

All times are GMT -4. The time now is 10:23 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.5.2
Copyright 2006 - 20011 F150forum.com
This site is in no way affiliated with the Ford Motor Company.


Garage Plus vBulletin Plugins by Drive Thru Online, Inc.