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Old 01-25-2013, 09:52 PM   #1 (permalink)
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Default Upstream O2 Sensor Location Verification and Replacement Trick?

Hello all,

Finally, I assume I found the rear upstream O2 sensor near firewall with lots of helps from this forum.

Just want to make sure that I got the right one, so I post a video to share with you.

MVI 2415 - YouTube

Also I need some helps to identify two unknown objects. The holder of one of them has been broken by the person who repaired by car.


Question 1> Is the O2 sensor the Bank 1 Sensor 1?
Any tips to loose this one. Very tight area!
Will this tool help me? Never see it before!
http://www.harborfreight.com/t-bar-w...het-98484.html

Question 2> I just found that the O2 Sensor socket is with 3/8" drive. I only have 1/2" break bar. What do you guys use to leverage the power needed to release the O2 sensor? Any good tips? No torch please

Thank you
Attached Thumbnails
Upstream O2 Sensor Location Verification and Replacement Trick?-o2_a.jpg   Upstream O2 Sensor Location Verification and Replacement Trick?-o2_b.jpg   Upstream O2 Sensor Location Verification and Replacement Trick?-object_rectangle.jpg.jpg   Upstream O2 Sensor Location Verification and Replacement Trick?-object_round.jpg.jpg  


Last edited by q0987; 01-25-2013 at 09:56 PM.
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Old 01-25-2013, 10:04 PM   #2 (permalink)
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Yes, that is the bank 1 sensor 1. You just have to reach around the hoses and things to get to it with your wrench.

The first unidentified object is the DPFE sensor. It should have two flexible hoses attached to it that go to the EGR pipe.

The second object is the EGR solenoid that controls vacuum to the EGR valve.

You can use a 3/8" to 1/2" adapter with an extension to attach to the O2 socket.
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Old 01-25-2013, 11:09 PM   #3 (permalink)
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Quote:
Originally Posted by behlinla View Post
Yes, that is the bank 1 sensor 1. You just have to reach around the hoses and things to get to it with your wrench.

The first object is the DPFE. It should have two flexible hoses attached to it that go to the EGR pipe.

The second object is the EGR solenoid that controls vacuum to the EGR valve.

You can use a 3/8" to 1/2" adapter with an extension to attach to the O2 socket.
I will also buy 7/8" combination wrench and hopefully it works for me.
http://www.harborfreight.com/11-piec...set-44718.html

Question> Can someone help me confirm whether or not the upstream O2 sensors are SAME(sensor specification and wire length)?

MOTORCRAFT Part # dy1039
More Information for MOTORCRAFT dy1039
XC2F-9F472-AA; Upstream Front #5C5Z9F472AA} Heated

I have contacted both fordparts.com and rockauto.com. Neither of them can help me verify this concern.

After I get this information, I will place the order through rockauto.com.

Thank you
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Old 01-25-2013, 11:44 PM   #4 (permalink)
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There is only one upstream sensor listed in the catalog, therefore the front and rear upstream sensors are the same. You can measure the wire length on your sensors if you want to confirm this.
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Old 01-26-2013, 07:15 AM   #5 (permalink)
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Hello all,

Just call local Ford dealership and the staff confirmed the following:

MOTORCRAFT Part # dy1039
More Information for MOTORCRAFT dy1039
XC2F-9F472-AA; Upstream Front #5C5Z9F472AA} Heated

Both upstream sensors are the SAME.

Hopefully, this information is also helpful for others.

Best and Enjoy your cold weekend
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