O2 sensor lifespan?

What is the expected lifespan for an O2 sensor, assuming you have a healthy engine? Any recommendations for manfacturers... go with the OEM? I don't know when the last time I replaced the one in my Tempo was (maybe 40-50k ago), and my wife's Saturn has 57k on it. Gas mileage is good in Tempo, but a little low in Saturn. Just gave both complete tune-ups, ignition wires, oil changes.

Thanks...

Reply to
67RMod
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67RMod opined in news: snipped-for-privacy@iwon.com:

Given no major malfunctions resulting in contamination by coolant, oil or raw gas, well over 100kmile.

Both my 3.8 TBirds have made it over 180kmile without reduced mileage.

They dont really fail - normally - just degrade, with longer cycle times.

And why not buy Bosch, the brand that owns the patent and developed them?

Reply to
Backyard Mechanic

Good deal.... well, the one in the Tempo was replaced a while back, but it was most likely replaced at 124k miles (when I got it) and it now has

192k on it, so it should still be fine. The little motor is very clean and burns very minimal oil. Wasn't sure about the other one, with 57k on the original sensor.

Cycle times... not sure, but just degrade, I understand...

If memory serves, I have in the past gotten Bosch ones for cars I've owned. Sometimes (and apparently unnecessarily) I bought them as part of the tuneup / maintenance stuff I buy when I get a car. I just wondered if the OEM ones ... what, I don't know, functioned more in line with factory spec or something...

Thanks for the info and recommendation.

Reply to
67RMod

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Reply to
HELMUT F RONER

BM do you own a Tempo? what year?

I had an 84... 4 cylinders/ 2.3 carburator... the ugliest car in town, dog crap brown color, half the body rusted but that car sure beat all odds. The myth about the Tempos being extremely bad cars died with mine. It was a work horse and never complained. It's life came to an end when a belt broke driving in an expressway at 65 miles/hour.

Reply to
Pepito

Yeah, I have an 89. It's silver, 2.3, 5 speed. 192k. I'm very proud of the little thing. It burns almost no oil, the air still works great (it does leak one can R12 each year, but my a/c expert neighbor says that's fairly normal), and it gets 33-35 highway, 28 city. I have had it for eight years, the main problem being the automatic seatbelt (I just disconnected it in the "back" position, and now flip it over me).

I am not convinced at all that Tempos are bad cars. Are they slow, yeah; are they bland-looking, yeah; do they rust, yeah; but mine is comfortable, holds 4 adults, has a big trunk, will cruise fine with the speedo pinned, if you want, parts and cheap and plentiful, and it has

-never once- left us stranded (knock on wood). They are workhorses. I've driven this car on many cross-country road trips in addition in to years of near daily "beatings" on old city streets, from almost 2 feet of snow and below zero, to 100-105 degrees sitting in traffic for hours, running at high altitude, whatever. It starts, runs, and drives fine. I fully expect another 50-75k out of it without major issues, and will probably look for a 92-93 in nice shape when I pay off the wife's car. Only bad problem I've heard about them is the AWD systems they offered.

Reply to
67RMod

On my 95GT I had one sensor go around 50K already. The other sensor never failed (until I sold it at 92K)

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Reply to
Rein

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