1999 F150 Idle issue - Ford F150 Forum - Community of Ford Truck Fans



1999 F150 Idle issue

Reply
 
 
 
Thread Tools Search this Thread
Old 02-09-2013, 12:53 PM   #1
Junior Member
Thread Starter
 
Join Date: Feb 2013
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
Default 1999 F150 Idle issue

I normally idle around 700 rpm. Recently, it will "bog" down to 550 or so and return to normal. This normally occurs immediately after turning the engine on, when I come into my slightly inclined driveway and come to a stop, occasionally at a stoplight, and strangest of all, if I press the driver window up or down button. The driver window is ornery, and I have had to bang on the motor from time to time to get it to start working again. I have checked for loose wires but am just not seeing any that would indicate a ground that might cause the idle issues.

Have approx 220k miles on the truck and has recently had tuneup done to it.

Any ideas?
Knavey is offline   Reply With Quote
Old 02-10-2013, 05:40 PM   #2
Junior Member
 
Join Date: Feb 2013
Posts: 9
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Check your alternator?
At first I was going to say worn/loose vac hose, but I would tend to think it might be a recharging issue.

Does it happen if you are sitting in park, or just when you start up? What happens when in drive and at a stop light?
willywonka is offline   Reply With Quote
Old 02-11-2013, 11:54 PM   #3
Junior Member
Thread Starter
 
Join Date: Feb 2013
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Only the window switch will do it if I am in park. The others only occur when I am pulling into the driveway or slowing to a stop at a light. To me, this feels like something loose. But the window switch doesn't fly with that theory since it will happen if I am sitting still.
Knavey is offline   Reply With Quote
Old 02-12-2013, 10:41 PM   #4
Member
 
Join Date: Dec 2012
Posts: 76
Thanked 0 Times in 0 Posts
Default

check your PCV valve and PCV line. Had a similar problem with my PCV line recently. had to replace the piece ov vacuum hose that connects the valve to the plastic PCV line
osimic is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Rough Idle/Misfiring - HELP! (2006 F150 5.4L v8) carp104 2004 - 2008 Ford F150 39 08-09-2016 07:32 PM
4.2 problems mjs757 1997 - 2003 Ford F150 2 09-05-2015 10:31 AM
High idle issue Aleakydishwasher 1997 - 2003 Ford F150 2 09-05-2015 12:35 AM
Changing shocks on lifted 1999 soccerdude1997 1997 - 2003 Ford F150 1 09-04-2015 03:52 PM
High idle issue Aleakydishwasher 4.6L 3V 0 09-04-2015 11:23 AM


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



All times are GMT -4. The time now is 07:16 PM.


Copyright 2006 - 2016 F150Forum.com