2001 windstar - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
LinkBack Thread Tools Display Modes
post #1 of 2 (permalink) Old 04-29-06, 05:53 PM Thread Starter
Registered User
Join Date: Apr 2006
Posts: 5
frown 2001 windstar

My 2001 windstar engine code is showing banks 1 + 2 are running lean. I have changed the fuel filter and spark plugs. The check engine light comes on about 2 days after I reset it. Is ther another sensor or is the main computer having issues? Help

kurtdimpel is offline  
Sponsored Links
post #2 of 2 (permalink) Old 10-07-10, 09:48 AM
Registered User
Join Date: Oct 2010
Posts: 1
Re: 2001 windstar

If the codes are PO171 and PO174 there is a TSB on this and you have to replace some bolts in the plenum and possibly the left [front] valve cover. There are a lot of postings on this extremely common Windstar problem. I found the TSB info on Alldatadiy. I did it and the lean conditions came back. Then I discovered a cracked flex hose on the exhaust side allowing oxygen to enter the exhaust, fooling the O2 sensor into thinking "lean". Fixed the flex hose and error code never came back....
gw.belden is offline  
Sponsored Links

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > The Garage - Tech Forums > Engine Specific Tech > V6 and Hot4 Tech

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

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

For the best viewing experience please update your browser to Google Chrome