Hello;

Does anyone know if the oxygen sensors in our cars are Ford part numbers? I know that I have removed parts from this car stamped with Ford part numbers that cost 3 or 4 times more at a Jaguar dealer parts counter.

Thanks!

 

There are a few different part # for the sensors. Here is a few I have. 250-24439, 234-4798, 25607, C2S38497, 106396, C2C7360. Hope this helps.


Good Luck,
The Dr!

 

Spike, why even go to the dealership to get the parts. The O2 sensors are made by Denso and are re-labeled with the Ford/Jag numbers.

The upstream sensor is a Denso 234-9029. The downstream sensor is a Denso 234-4798. Keep in mind that the downstream sensors are called oxygen sensors and the upstream ones are sometimes referred to as air-to-fuel mixture sensors, but may also be referred to as oxygen sensors too. From there, you can walk into any auto parts store and order it that way.

 

Thanks for your reply.

There are a total of 4 sensors correct? 2 upstream 2 downstream...

 

Spike, yes, you are correct. 2 up, 2 down.

 

Thanks for your reply. Replacing all 4 at the same time is probably a good idea right? I have no CEL on but as I hVe posted many times, I have an occasional "heaviness" and high fuel consumption. It has been recommended enough at this point that I want to eliminate these as a possibility.

Did you change your own?

All all four easily accessible ?

Thanks !!!!

 

Spike, do you need to change all 4, I say no. Should you replace both uppers or both lowers, yes. That way you don't have build up on 1 sensor and a band new one on the other side.

As for accessibility, the lowers are pretty easy to get to as I recall as you simply get under the car and they are just in front of the Y-Pipe. The sensor on the front of the engine (between engine and radiator) is fairly easy to get to once you remove the air filter box. Now, the one on the back of the engine is a PITA. Some members have gone from the bottom and had to stick their hands up between the drive shaft and exhaust and in general fought to get their hands to the needed areas. Option 2 is to remove the intake manifold off of the car and then go in from the top (this is the option I am planning on taking). More items to remove, but seems easier and quicker to do in the long run.

 

thermo is right spike. By taking off the intake its more things to take off but less bleeding of knuckles....Don't forget PB BLASTER is your friend. and its much easier if you have the sensor socket for removal.


Good Luck,
The Dr

 

Thanks so much guys. I wish I would have known that when I removed the manifold to change the spark plugs and gaskets last year!

Well at least I have all the information I need to get the job done. Very informative.

Thanks!!!