03 navigator slow acceleration - 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 11-15-2010, 12:06   #1 (permalink)
Registered User
 
Join Date: Nov 2010
Posts: 3
03 navigator slow acceleration

no power going up hills or small inclines,revs reach up to 3k to make it up
shifts are very late, mr. transmission says not tranny 4r100
have changed all 02 sensors, plugs, fuel filter,coils. 2 months ago replaced egr tube. are cats a problem?
b1bent is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 11-15-2010, 14:06   #2 (permalink)
2002 F150 XLT
 
Bert's Avatar
 
Join Date: Nov 2008
Location: Oregon
Posts: 9,809
Re: 03 navigator slow acceleration

The cats can be plugged. Check the vacuum at idle, then raise the RPM to about 2500. The vacuum reading should drop to near 10 and go back to near what it was at idle. If it stays low, there's a restriction in the ehaust.
__________________
Bert
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 03:32.



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.