Re: life expectancy of O2 sensors question
I have a car with 140,000 miles on it and only changed the O2 sensor
once at about 100,000 after I didn't make it through the emission test.
Car didn't seem to run any different when it was good or bad.
pyotr filipivich wrote:
> I've got a 1990 ford ranger, with 2.9 liter EFI package.
> About three years ago, I had to replace the O2 sensor after, well, it
> 'died'. Symptoms had been loss of power, bucking at highway speeds (on a
> flat stretch, having to down shift to maintain speed), and loss of gas
> Now I've got a sixty mile commute, and there seems to be one stretch on
> the way up in the after noon (I work nights) where I seem to have to shift
> down (fifth to fourth) to 'clear' the bucking, and then I can shift back up
> to 5th.
> So I'm suspecting the O2 sensor (again) but does anyone have any idea
> how long those are suppose to last. Its been about 3 years and 50,00 miles
> if that is any help.
> thanks in advance for any help.