It is supposed to be after the catalitic convertor, the one which is under the hood. Thanks,
I have a 99 chevy Tahoe and the sensors are bad I need to change them asap My daughter is coming home tomarrow and I am going to need the truck to pick her up 2 1/2 hours from home please help…
Service engine light came on and was diagnosed as the problem.
my maintenance book says it should be changed every 100,00 miles
My car starts to smoke and spudder when iddling at a stop. I heard it was the oxygen sensor. what do you think it could be?
Have? If more then one do I have to replace them all. If not how do I know which one to replace? Please help!