Go Back   Ford Truck Enthusiasts Forums > Regional Chapters > Southern Region > Georgia Chapter
Sign in using an external account
Register Forgot Password?


Georgia Chapter Join Chapter, Leader: ChiefM SPONSORED BY:

Welcome to Ford-Trucks Forums!
Welcome to Ford-Trucks.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community 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 fast, simple and absolutely free so please, join the Ford-Trucks Forums community today!





 
Reply
 
LinkBack Thread Tools Search this Thread
  #1 (permalink)  
Old 11-05-2007, 07:59 PM
FAPP FAPP is offline
New User
 
Join Date: Nov 2007
Posts: 1
FAPP is starting off with a positive reputation.
99 Explorer PO171 codes

I currently own 10 Fords from 1965 to 2004. By far the 99 Explorer (127K) has given Ford a black eye. My check engine light is on again and the OBD II code is PO171 (too lean). I replaced O2 sensors on one side and the light appeared again a couple of weeks later. I cleaned the MAF, PVC valve and looked for vac leaks. Fuel filter was changed 12K ago. The engine is hard to start in the morning. Once started, it revs up and down for a few seconds and then idles. I have read online that it may be bad intake o-rings. Any similar experiences? Any help would be appreciated.
Reply With Quote
  #2 (permalink)  
Old 11-05-2007, 09:59 PM
Gevans17 Gevans17 is offline
Posting Guru
 
Join Date: Oct 2006
Posts: 1,080
Gevans17 is gaining momentum as a positive member of FTE.
Po171

Look for leaks around the upper intake seals, damaged pcv hoses, vacuum tree at the back left, depending on the year, lower intake around the front or back corners. Also look for cracks, loose clamps on the intake air tube in between the ribs.
Reply With Quote
  #3 (permalink)  
Old 11-06-2007, 05:14 PM
skidooman's Avatar
skidooman skidooman is offline
Posting Guru
 
Join Date: Oct 2005
Location: Langham, SK
Posts: 2,114
skidooman is gaining momentum as a positive member of FTE.skidooman is gaining momentum as a positive member of FTE.
I had the same problem with my '99 Explorer, It was the intake gasket. Ford had extended the warranty on that particular part so it was done on warranty, but that was a couple of years ago.
__________________

Marlon
2011 F250 Lariat Crew, 6.7L
2011 Edge AWD Limited.
2000 focus SE.
1979 F-150 Ranger Lariat, 460ci auto.
Reply With Quote
Old 11-06-2007, 05:14 PM
Reply

Go Back   Ford Truck Enthusiasts Forums > Regional Chapters > Southern Region > Georgia Chapter

Tags
171, 1999, 99, code, codes, engine, explorer, f150, ford, navigator, po, po171, po172, truck, v6

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 On
Pingbacks are On
Refbacks are On
Forum Jump



All times are GMT -5. The time now is 03:01 AM.


Powered by vBulletin® Version 3.7.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - Jobs
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup