Thursday, September 15, 2011

How do I change the oxygen sensor in a Dodge Dakota?

1. Get the oxygen sensor you need from the parts counter of a Dodge/Chrysler dealership. Emissions problems can be really tough to track down, so for this you want to spend the extra money to get the real thing. Know engine size, transmission type, year, CA emissions or not, high altitude or not, etc. before you go to the dealership, since all these things might cause a different version of the sensor.



2. Replace air filter and PCV valve before you put in the O2 sensor. PCV valve should be changed with every oil change. Fresh oil and filter are always a good thing. (Reason? Oil blowby contaminates O2 sensors.) I also replace fuel filter (never gets done) and check fuel pressure, since if these things are poor, the computer may misinterpret them as an O2 sensor.



3. Disconnect the battery. Not strictly necessary, but always good practice, especially since wrenches have a magical way of falling between the starter motor's positive lead and ground. It may also clear the ECM's RAM.



4. With exhaust system warm but not hot, use a combination or deep socket wrench to get off the old O2 sensor. I usually cut the leads off the old one first. Remember you cannot splice an O2 sensor's leads. Use a 6 point socket for better torque, the sensors have a habit of being corroded into place.



5. Apply the anti-seize compound which came with the new sensor. Thread it in by hand and then torque it to specification using an O2 sensor socket and a torque wrench.



6. Plug the new O2 sensor into the harness and reattach the wires to supporting clips.



7. Reattach battery and start up the truck. The truck may behave oddly for a few minutes as the computer re-learns that the feedback system is now working properly and re-enters optimal closed loop mode. (ie. Check Engine light goes out and computer stops throwing diagnostic errors.)



8. Re-read fault codes in a week. There should be no new codes.



Single-wire (non-heated) O2 sensors are usually cheap enough to get into the habit of changing them every 50,000mi or so - basically every set of tires. O2 sensors get slow in time as deposits cover them. Keep the engine in tune to keep deposits to a minimum. Tune-ups (plugs, leads, cap, rotor, etc.) and fresh O2 sensors will save you gas money.
How do I change the oxygen sensor in a Dodge Dakota?
What year??? it's on the manifold gotta have the o2 wrench or socket.



But i'd go with answer above.
How do I change the oxygen sensor in a Dodge Dakota?
get a new sensor find the old one on top of the exhaust ipe about halfway along the cat unscrew the old one and put in the new one
find the plug of the sensor, unplug it, and trim off just enough of the outside of the plug you can squeeze a box wrench around it. get that wrench securely on your socket and pull. be careful not to damage the exhaust pipe. better to do this hwen the car is cool so you don't burn yourself. make sure the car is secure too. you really have to pull sometimes to get those ******* off and you don't want to hurt yourself.
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