In this video, I will go over how to tell what O2 sensor to replace and how to identify where your O2 sensor is located, bank 1 sensor 1, bank 1 sensor 2, bank 2 sensor 1, or Bank 2 Sensor 2.
Common engine codes that set when an oxygen sensor fails are p0135, p0136, p0137, p0138
Sometimes it can be tricky to find out your O2 sensor location or what O2 sensor you are supposed to replace hopefully in this video I will be able to make it clear has to find your O2 sensors located and what one to replace. Many cars and trucks have 4 o2 sensors and you want to make sure you replace the correct one.
I have seen in many instances people replaced the wrong O2 sensor by mistake hopefully by watching this video it can save you some money on O2 sensor replacement.
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In this video I will go over a few tips on how to successfully remove an old oxygen sensor out of a rusty exhaust manifold or exhaust pipe.
Also here’s a link to the O2 sensor tool kit that are used in the video
Cool trick to remove an O2 sensor. If your car has check engine light on for a bad oxygen sensor code, that means it needs replacing. Oxygen sensor location, diagnosis, removal and repair.
All right flat rate mechanic again and
I just wanted to go over a few tips that
will help you replace your o2 sensor.
Because a lot of times over the years
these things, between the heating up and
cooling and the rust a lot of times oxygen sensors
like to get stuck inside the exhaust
manifold or the exhaust itself.
So Probably first off and probably the most
important tip I can give you guys is to
get the exhaust nice and hot before you
attempt to remove this and you wont
necessarily need a torch or
anything like that.
Just run the engine for a while hold the RPMs up to
maybe about 2,000 rpms for five
minutes or so and that will get that
exhaust nice and hot.
That’s going to aid in getting the oxygen sensor
out. Also a lot of
times you’ll be able to break these
loose but they’ll actually start to take
the threads out as you pull it from the
exhaust
The reason why is, the tip inside the exhaust
will get rust build up on it, so as you’re
threading it out the rust will tend to take the
threads of the exhaust out as well.
So what you want to do is just break the o2 sensor
loose and then spray some penetrating
oil down around there and just work it
back a few times.
That’s going save your threads. Also they have some pretty nice oxygen sensor removal kits out there that you can find on Amazon or your tool truck. Whatever you prefer but I actually picked this one up to Amazon relatively cheap here https://amzn.to/2IbVcaf it also comes with a thread chaser.
So if you pull the oxygen sensor out and it does damage the threads
you can run it back down through
before reinstalling it.
You’re always going to want to use some kind of anti-seize or carbide stuff to. Most oxygen sensors come with them as well.
Also, I highly suggest you get an OE replacement or close it. Do not replace your o2 sensor with a Universal O2 sensor. Where sometimes they’ll have the wires we you have to wire in your own pigtail connector.
Those senses are very problematic and a
lot of times will fail just due to poor
connection being for where you spliced
it in. so always go for the OE style
that has a correct connector on it. just
to save yourself a lot of trouble down
the road.
I think that’s about it off
top of my head. but yeah I mean if it doesnt
come out, torches are very handy too.
You would heat up around the o2 sensor itself and worst-case scenario if that thing just is not coming out and it takes all the threads. I have had to weld a new oxygen sensor bungs onto the exhaust.
Diagnose check engine. Found light stored code p0141 for O2 sensor heater circuit bank 1 sensor 2. Drivers side after the catalytic converter.
Checked both fuses and the under hood fuse compartment for the O2 sensor heaters and both checked good. Accessed bank 2 O2 sensor after the cat and found 02 sensor wiring had been rubbing on front drive shaft on the O2 sensor side. Checked the vehicle side for power to O2 sensor heater and tested good. O2 sensor will need to be replaced due to wiring damage on this Chevy Silverado.
2004 Express 1500 5.3
2004 Silverado 2500 HD 6.0
2004 Silverado 3500 6.0
2004 Sierra 1500 5.3
2004 Sierra 2500 HD 6.0
Customer Concern: Setting trouble codes P0141 and P0161.
Average Reported Mileage: 106957
Tests/Procedures: 1. With a cold engine, turn the key on engine off and monitor O2 voltage. Within 2 minutes, the voltage should drop to about 150 mV.
2. Verify there is 12 volts on the Pink wires to both O2’s. If no voltage check the O2B fuse for blown.
3. If the fuse is blown check wiring to the sensor for chafing on the transmission or transfer case.
Tech Tips: Heater Current Test
• The PCM detects that the affected HO2S Heater current parameter is more than 1.375 amps or less than 0.25 amps.
• The above condition is met for 10 seconds.
Heater Resistance Test
