Replacing oxygen sensor on 1999 F150 - Ford Powerstroke Diesel Forum
Ford Gassers A Place for Diesel nuts to discuss Ford Gasoline powered vehicles!!!

LinkBack Thread Tools Display Modes
post #1 of 1 Old 07-28-2012, 12:06 PM Thread Starter

TexasR.N.'s Avatar
Join Date: Jun 2006
Location: Texas
Posts: 5,166
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Replacing oxygen sensor on 1999 F150

At least this is how I did it after a P0133 code.

The back ground on my truck (1999 F150) is that I am the second owner (my former neighbor was the first) and it has 293K miles on it at the time of this post. The truck is bone stock FWIW.

I searched the internet and couldn't find a good step by step replacement write up. The front oxygen sensor on the passenger side is hard to get to so here is what I did:

Jacked the truck up and placed jack stands under it. Removed the front passenger tire and the plastic wheel well liner.
Tools needed for this part are a 7/32 socket and a trim tool remover (for the plastic push in fittings).

There are 5 screws and 3 or 4 plastic push retainers (don't know actual term) to remove.
Because of the location of the sensor I had to remove the transmission dipstick tube. *If you do this have a pan or bucket under this area as you are going to lose fluid* the dipstick tube is held place by an 8mm bolt about the middle of the exhaust manifold. Unscrew it and with a little pressure the tube will pop up and out, and so will some fluid.

Wheel well liner out and dipstick tube pulled out of the way.

The connector where you will disconnect the old 02 sensor is tucked up behind the engine block and is kind of hard to get to. A little time and patience and you can get it separated.

From underneath the truck I cut the end off of the old 02 sensor (because the closed end of the wrench wouldn't fit over it) and used a 7/8 box wrench to unloosen the sensor a little at a time until I could get it out with my fingers.

I put the new 02 sensor in finger tight and then tightened it down with small turns of the 7/8 wrench until tight

The cord on the new sensor is longer than the factory one so once reconnected I used zip ties to keep the slack up and away from the hot parts.

New 02 sensor installed and dip stick tube back in place. Note the attachment approx 1/2 down the dipstick tube. It is the 8mm bolt I previously mentioned.

Wheel well back in place.

Truck lowered back to the ground.

Hope this helps someone else out, as many on here have helped me.

Have a good one.

Remember Ft. Hood

And never forget who did it

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Religion of peace my жопа

Originally Posted by JK23112 View Post

Ah, we can lead a man to knowledge.....but we can't make him think.
TexasR.N. is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may post new threads
You may 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