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03 expedition oxygen sensors

This is a discussion on 03 expedition oxygen sensors within the 2nd Gen - 2003 - 2006 forums, part of the Ford Expedition Forum category!
any video available on replacing those two oxygen sensors on the exhaust manifold on driver side and passenger side. I'll ...

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Old 02-11-2012, 10:06 PM   #1 (permalink)
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Default 03 expedition oxygen sensors

any video available on replacing those two oxygen sensors on the exhaust
manifold on driver side and passenger side. I'll have a so so time with the passenger side replacement, but the driver side oxygen sensor seems a little cramped. Seeing if any of the enthusiasts had a handle on it..
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Old 02-15-2012, 10:19 AM   #2 (permalink)
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I just did this to mine. I have no video but i can tell you what i did.

Passanger side was the hard one. I had to get a different o2 sensor socket. I found a shorter one with a 3/8 ratchet hole and slipped it on with my fingers and then got a 3/8 ratchet on there and was able to break it loose. That low profile o2 socket was key.

The wires on the other hand were a pain. I took a really long flat head screwdriver and compressed the clip then i was able to hold the screw driver with my right and and slide my left up there and pull the wires enough to get it out. Just be patient and dont go crazy and u will get it.

The driver side was 10 times easer. You shouldnt have an issue with it.

FYI - when i bought the replacement sensors they are about 1" longer then stock. So i had to connect the wires before screwing in the sensor on the passanger side. to avoid over twisting the wires, i counter twisted them before hand. It all worked out fine.

Hope this helps.
2003 Ford Expedition 4WD XLT 5.4
K&N CAI w/ High flow MAF
Flowmaster Exhaust
75mm TB and TB Spacer
Accel Coils
Custom Tune with SCT Programmer
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