is anyone here a mechanic? how do you replace an o2 sensor on a lexus is 300, 2001? my check engine lights on.

Question

got a computer diagnostic test done and they say nothing wrong with engine. only the sensor is dead. part cost 40 bucks, if i have them do it takes 1/2 hr charge $185, however, if i just want the part it will only cost me $40. how can they charge over 140 for 1/2 hr work???any know how?

Answer 1

the sensor is on exhaust, takes special tool ,can by at auto supply,- disconnect ground on battery ,un plug sensor use tool ; to remove sensor, make sure new sensor looks same plug , apply thread compound to threads only/ small amount tighten, plug sensor in. hook ground on battery

Answer 2

My assumption here is that they are also charging you AGAIN to hook up there scanner and clear your ECM following the replacement of the sensor, which would likely be an additional half hour charge. You can replace the sensor yourself.....it is not technical, but it is difficult without the correct tool, and there is a chance that if the sensor is seized, you could damage the exhaust and have to have even further work performed to fix what you mess up. The check engine light and codes WILL need to be cleared after the repair is performed.

Answer 3

$40.00 for an O2 sensor is very cheap. As far as the price of installation, that is way to high. I've replaced a few O2 sensor and nothing more involved than disconnectiong the wire and removing the old O2 sensor.
I think they may have gotten the price and work backwards. It probably cost $185.00 (especially if you buy it at a dealer, may get it cheaper at your local auto store) for the O2 sensor and $40.00 for the labor. I just bought a heated O2 sensor for $123.00.

Answer 4

just unhook the battery cables that will reset the computer in your car if that doesn t work you need a mechanic.