O2 Sensor and PCV Valve

[Gt In Detroit]

Should the O2 sensors and PCV valve be replaced on a PM interval or just as needed, like truck throwing a code, and if they need to be swapped at a mileage interval, at what mileage..


tks
jim

 

[davidmmm69]

Should the O2 sensors and PCV valve be replaced on a PM interval or just as needed, like truck throwing a code, and if they need to be swapped at a mileage interval, at what mileage..


tks
jim

not O2 sensors just pcv valve...