In my 04 Dodge Durango - where is the upstream O2 sensor located? Is it easy to replace?
In my 04 Dodge Durango - where is the upstream O2 sensor located? I would think it's between the front of converter and back of engine.......
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93tracker5spd
Member Posts: 194
Hello! You don't say what engine you have, but generally speaking upstream is pre-catalyst or before the catalytic converter, most are in the exhaust manifold. It may also be in the pipe just below the manifold. It will have 2 or 3 wires coming off it depending on whether it is heated, most newer models are. First Follow the wires to where they plug into the harness, carefully unplug them so as not to brake the plastic connector block, (the new one comes with the wires already on it). The base of the sensor is a large hex-nut shape, find a wrench or deep well socket, (you can buy a special socket at parts or tool store), that fits this base and thread it out just like a spark plug. Thread in the new one, tighten snug to seal, (don't OVER tighten and break off). Plug in the wire connector and your all set.5
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Anyway, it's the 5.7 Hemi engine. By The Way...we greased every possible flexible fitting, zirk grease fitting, etc. And the darn thing still squeaks when you drive over a slight bump !!
As to the coil spring, I looked online and there are replacement coils and coil seats available for the 04 Durango. But with a more extensive search I was able to find pictures of some that only have the shock, they were calling them struts, so I guess the answer is some do and some don't. Glad to hear you found that squeak. Those little things like that can drive you nuts, I know they do me. Might want to look at getting one of those OBDII meters so you can pull the codes yourself, they work with any vehicle equipped with OBDII. I think that is all 97's and newer. Thanks for taking the time to post back. It's always nice to know the outcome.
I will urge my son to re-try getting OBDII readings at Napa and go from there. Thank you for quick location of No. 1 cylinder.
I didn't make myself clear on the squeak. It's STILL there. It was the very last location where we thought it was coming from when we decided it was from that torsion bar area. I'm going to start the easy fix by replacing the shock absorbers...they DEFINITLY are not struts. By the way, This Website is Awesome. I thank you !!!