03 navigator rough idle at stops - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
Ford Forum Ford Forum

» Auto Insurance
» Featured Product
ยป Wheel & Tire Center

Go Back   Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > Ford Trucks | Utes | Vans |SUVs | Crossovers > Ford Expedition Forum | Lincoln Navigator Forum
Register Home Forum Active Topics Photo Gallery Auto Loans Garage Mark Forums Read Auto Escrow

Ford Expedition Forum | Lincoln Navigator Forum Forum for discussion of the Ford Expedition and Lincoln Navigator.

FordForums.com is the premier Ford Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 10-09-2009, 20:18   #1 (permalink)
Registered User
 
Join Date: Oct 2009
Posts: 7
03 navigator rough idle at stops

2003 navigator w/ 60k on it, lately when i get to a red light i feel a vibration in the vehicle, more so on cold days, but never during acceleration or any other time, just when in gear and stop... any ideas where to start??
jagb2507 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 10-09-2009, 21:22   #2 (permalink)
2002 F150 XLT
 
Bert's Avatar
 
Join Date: Nov 2008
Location: Oregon
Posts: 9,890
Re: 03 navigator rough idle at stops

There's an extra load at idle and in gear so an engine miss will be felt easier. If you haven't replaced the spark plugs, this would be a good time to do it. There's a possibility that one of the coil packs is bad. It will eventually cause a check engine light and code.
Bert is offline   Reply With Quote
Old 10-09-2009, 23:54   #3 (permalink)
Registered User
 
Join Date: Oct 2009
Posts: 7
Re: 03 navigator rough idle at stops

thank you for the reply, I will look into changing the plugs but how would a bad coil pack be detected? my friend suggested a vacuum leak? is that also a possibility? if so, how would one diagnose?
jagb2507 is offline   Reply With Quote
Old 10-10-2009, 08:55   #4 (permalink)
2002 F150 XLT
 
Bert's Avatar
 
Join Date: Nov 2008
Location: Oregon
Posts: 9,890
Re: 03 navigator rough idle at stops

A vacuum leak is rare on them. To check a coil pack, you can umplug one injector at a time and see which on doesn't make a change, then switch it with another one and se if it move to the new location. If it's in a hard to get to location, move it to an easier place. See if the miss moves with it. You can usually feel a miss just setting there and not in gear. Also look at the rubber boots to make sure they aren't cracked causing a spark jump. When you change the plugs, make sure you use anti-sieze and a torque wrench. too tight and the cyl. head exands and pulls them out. If you have 5.4, be very careful, the plugs sometimes brek and special tools are needed.
Bert is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > Ford Trucks | Utes | Vans |SUVs | Crossovers > Ford Expedition Forum | Lincoln Navigator Forum



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
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 On
Pingbacks are On
Refbacks are On


Powered by vBadvanced CMPS v3.2.2

All times are GMT -7. The time now is 08:42.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.6.0
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.