O2 Sensors

Are Chrysler O2 sensors crap? I've got a five year old 300C (2006 model
year) with 50K miles on it. An O2 sensor had to be replaced a year ago, a
second one has failed recently. I'm having the dealer replace all four
because I figure if two have failed the other two can't be far behind.

Is this unusual on the Hemi?

 

a lot of that depends on the fuel in your area, as well as total hours
running, not just miles......

 

My car sits in the driveway all week, and then I take it out for long
trips on the weekend. Is sitting bad for the sensors?

 

I think they are crap too. But my model is older. A 1999 Stratus V6.

 

there is nothign special about o2 sensors. I think it is mostly due to
engine. Check your engine compression, and injectors.

 

there is nothign special about o2 sensors. I think it is mostly due to
engine. Check your engine compression, and injectors.

I don't recall ever changing one on other cars, but I've had to have an O2
sensor on my Labaron replaced four times in the past nine years.