Old O2s

[SHOZ123]

Here's a couple of pics of my O2 sensor that was setting a code on my '93. I think I got my moneys worth out of this one. The other looked good yet.

I'd always heard that Bosch was the OEM maker of the O2s. In my case on the '93 it was NGK.

 

[rangerj]

Shoz123,

I would say you got your moneys worth out of the O-2 sensors. How much additional fuel did you burn while they were not working? (rhetorical question)

The two I pulled out of my 90 were Bosch (OEM). The manufacturers frequently use more than one supplier for parts. If one has a strike, the others keep the supplies coming!

I know that the lower control arms were made by Dana, Moog, and TRW. The axels can be NGK, TRW, and in some instances Citroen.

From the looks of the corners of the "nut" you had a tough time getting the O-2 sensors out. Did you have to heat them? I hope you didn't drop a wrench on your eye getting them out! rangerj

Sorry T, but you are going to be a long time living that one down!

 

[SHOZ123]

One of the reasons I changed it was to see how much it affected the gas mileage. I am driving 120 miles a day round trip to work and it is almost all 70 mph on the interstate. I was getting 23-24 mpg.

If I'd have had the sensor socket it would have come out easily. I used an adjustable wrench, heat and PB Blaster.

 

[ScotSHO]

SHOZ123:
If I'd have had the sensor socket it would have come out easily. I used an adjustable wrench, heat and PB Blaster.

It's funny you say that, I needed to buy the socket to get one of the two out on my 94 Ranger (for clearance reasons).

The cramped O2 came right out with the socket, but the one I could get a wrench on rounded off with the socket & 7/8" open end. Ended up using the good old vice grips and mangled it a little but got it out. Mine were almost a bright white with no broken parts, it looks like the tips on both of yours burned off?

Scot H

 

[SHOZ123]

It's a 21mm socket that's needed or a wrench.

That is the same sensor. One view showing the NGK logo. This one was in the rear. The front ones was still good but got changed anyway.

 

[sdpatt]

You will need a thread tap to clean those threads that were stripped in the exhaust piping mount for that sensor. If the other sensor has been in as long, it would certainly need to be replaced too. Was there any anti-seize grease on the new sensor's threads? It definitely needs it if it was not already provided on the sensor.

 

[SHOZ123]

The other was changed too. And I used anti-seize. Forget the thread tap, they are screwed in. If the original ones lasted 157k there will be no need to replace the new ones.