Anyone have any tips or tricks for replacing the upstream O2 sensor on the passenger side? I have seen write ups on replacing the pre-04 models but nothing on the 04-08 trucks. Drivers side doesn't look too bad but the Passenger side looks like a real PITA, even going thru the wheel well. Truck is a 2004 with the 5.4. Any tips are appreciated. Thanks,
Kev

 

can you get to it from underneath? I haven't thought about changing mine so I don't even know where the bungs for them are.

 

The drivers side is fairly easy to get to but the passenger side is up by the trans dip stick and the connector is even further up. I have the low profile socket but was wondering if there is trick to it. I didn't try too hard last time as it was 20 degrees out and said screw it. Suppose to be slightly warmer this weekend so thought I would give it another try.

 

Get an 02 Sensor tool.... Works wonders and you can get into tight areas.

 

Can you post a link to one. I have the low profile o2 socket already but still a tight squeeze to get in there.

 

http://www.tooltopia.com/kd-tools-39...googlebase_18u

 

Thanks! That looks very close to what I have.

 

Finally replaced both sensors last night. 7/8" open end wrench actually worked better that the O2 socket. Hardest part was getting my hand up between the trans and floorboard to disconnect the wires.