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Oxygen Sensors
Also called as the lambda sensor, an oxygen sensor measures the proportion of oxygen in liquid or gas. Scientists use this electronic device in measuring respiration or production of oxygen. Oxygen sensors are also used in automobiles.
3,729 Questions
A malfunctioning thermostat will do what you describe if it is opening at at very high temperature, at some point it probably will quit opening at all.
Where is the oxygen sensor on a 1995 Chevy Cavalier?
Look under the hood, the front of the engine, on the exhaust manifold. It should be the only thing with wire/s on the manifold. You will need a special socket to remove it. The tool is available to "Borrow" from the folks at AutoZone. If you need any further info, just gimme a shout.
Actually it depends on the engine. The 2.3/2.4 has the exhaust manifold on the back side of the engine - between the engine and firewall. You'll most likely have to get under the car to remove the O2 sensor. On the 2.2 the exhaust manifold is on the "front" of the engine between the engine and the front crossmember. You should be able to get to this O2 sensor without getting under the car (note I said *should*). Either way they're located on the exhaust manifold, before the catalytic converter.
What is the location of the Bank 1 oxygen sensor on a Ford Mustang GT?
On 1990, 302 V8 model, the sensors are located just aft of the exhaust headers and on a line where the gearbox joins to the rear of the engine and where the exhausts start to run down the body. You need to get under the car, they are just above the floor pan line. The two sensors have two white wires and one black one (or is that two black and one white?). There is one sensor for each cylinder bank.
More Model Information:
1996 and up were OBDII and had four O2 sensors. One before the cats, and one after on each side. The O2 sensor in question would be the front drivers side.
1995 also has a total of four sensors.
How do you replace the oxygen sensor on a Subaru?
Buy the new sensor and it comes with instructions. The tricky part is finding it. On a forester its located on the up pipe manifold. Since that's a boxer engine, the mainfold is low, you have to get under the car. A bosch O2 sensor has a nice detail set of instructions for replacement.
Location varies with model of Subaru, but most are installed just upstream (towards the engine) from the catalytic converter located under the right hand drive shaft. Mike is correct-- you must get under the car to replace. Make sure you follow safety and use a good set of car ramps on level solid ground to raise the car, or use jack stands. Best to work on a cool engine/car. Unplug the wire leading from the O2 sensor, then unscrew the sensor to remove. The old one may be stuck quite well, but it unscrews like a spark plug. When installing the new one, avoid getting dirt, grease (or anti-sieze) on the sensing tip of the new unit, and just screw back in. It will turn easily for a few turns, then turn harder for about 1/2 turn, then it just stops turning. You have compressed the sealing washer correctly. Remove your wrench, plug the new sensor back in, and lower the car. Do not be surprised if the computer is a bit confused for the first 20 minutes of driving-- it will be re-learning the correct new oxygen sensor.
All O2 sensors are threaded into the exhaust system at various points.
However, most O2 sensors are threaded into the exhaust system close to the engine end of the exhaust syatem.
Where is the oxygen sensor on a 1992 Chevrolet Cavalier?
On a 1994, It should be on the manifold coming off the engine. It looks like the end of a pezzo lighter on the burner from a large barbque. On the manifold, it has one wire coming off it, just like the barbeque lighter and the shaft sticking inside the manifold should be white like the lighter. Why do you want to repace it? What is your check engine light on?
Where are oxygen sensors located and what are the names - designations - Windstar?
Here is the low-down on oxygen sensors, and their location designations explained:
Oxygen sensors are screwed into the exhaust system at various points. Some people say that there are 4 oxygen sensors, but technically, that is not correct. Only the front 2 are considered oxygen sensors.
These oxygen sensors are screwed into the exhaust pipe or directly into the exhaust manifold, one on each bank. Because they are in front of the catalytic converter, this is often referred to as 'upstream'.
The other 2 are actually called catalyst monitors. They are oxygen sensors, but they serve a different purpose. They monitor the activities of the catalytic converters, thus the name, catalyst monitors. They are screwed into the exhaust one on each bank, after, or downstream, of the catalytic converters.
On a 4 cyl engine, there are only a total of two such sensors, the one in front of the catalytic converter is the O2 sensor, the one behind the cat is the catalyst monitor.
The location names for them are as follows:
* On a 4 cyl, the front / upstream is called "bank 1 sensor 1" and the rear / downstream sensor is called "bank 1, sensor 2."
* On a V6 or V8 engine:
** the passenger side bank on a forward facing engine, or the bank closest to the firewall on a transverse mounted engine, is bank number 1, so the forward / upstream sensor on that bank would be "bank 1, sensor 1."
** The driver's side bank (forward facing mount engine), or front bank (transverse engine) would be bank number 2, thus the forward / upstream sensor on that bank would be "bank 2, sensor 1," and the rearmost / downstream sensor on that bank would be "bank 2, sensor 2."
There are 4 oxygen sensors on the Windstars They are divided into 2 banks of 2. Bank 1 is the for the rear 3 cylinders of the engine - Bank 2 is for the front 3 cylinders. Bank 1 / Sensor 1 (upstream) is located just below, in the pipe, the exhaust manifold on the back of the engine. REMOVE TIP: you may have to bend part of the transmission heat shield out of the way - be sure to put it back when done.
Bank 1 Sensor 2 (downstream) is located just past the drivers side catalytic converter. Bank 2 Sensor 1 (upstream) is located just below the exhaust manifold, in the pipe, at the front of the van - access is from the top. Bank 2 Sensor 2 (downstream) sensor is located just past the passenger side catalytic converter. NOTES: * Use lots of penetrating oil - allow to soak - to make removal easier and avoid damaging the exhaust pipe
* the sensors are screwed directly into the pipe at a 90 degree angle and look like spark plugs with either 8", 12", or 14" wires attached to them
* Tools:
* ** ** it is usually a 7/8ths size wrench ** special-purpose oxygen sensor socket - not expensive, and commonly offered for free use by the auto parts store
***
* Inspect the condition of wires and that they are not touching any parts of the exhaust system
* Before getting under the van, make sure to disconnect the battery if you have the Air leveling suspension
Rule of thumb: Bank 1 is on the side of the engine with cylinder #1 6 Cylinder numbering:
-----
1 2 3
4 5 6
----
Front of vehicle And before spending any $$ on replacing a sensor, I would test it to ensure it really really has failed! It's very likely someone read the DTC (diagnostic trouble codes) that cited an oxygen sensor reading - but then said something that leads you to believe it's a failed/bad sensor and needs replacing. The vast majority of times that is NOT the problem.
Take those codes and research them on the internet! (see "Related Links") A perfect example are P0171 and P0174 codes - indicate a lean mixture was read in bank 1 & 2 (respectively). On the Windstar, that's a prime symptom covered in Technical Service Bulletin TSB# 03-16-1 (see "Related Questions") The auto parts store guy had me ready to spend $80 on 2 sensors. - CCoach there are 3 oygen sensors on a 1999 ford windstar , one (1) is located on the exhaust pipe where it come down from the engine in front of the van, the second one is loated if front of the catalytic converter the 3rd and last one one is located at the back of the catalytic coverter. all three of them has different lenght of wire on them so besure you buy the right one. the prices starts around 39.95 each. i just replaced all three of mine i also have a 1999 ford windstar. good luck. ron if 02 and 97 are the same then the rear side is has cylinders 1-3 (therefore i assume this must be side 1) Also you can tell cylinder 1 is on the head that will be about 1 inch further to the front of the engine. Autozone.com has the oxygen sensor testing procedures.
See "Related Links" below No - you can replace only those that have failed or are triggering error codes. four i believe. There are two sensors, one located in the engine compartment just below the radiator on the manifold. Gently disconnect the wire connection then take a wrench and loosen the hex nut(similiar to removing a spark plug) by turning left or counter clock wise. If the enamel tip is yellow or black, it is worn. It should be white. The second one is located midway on the exhaust system behind the transmission. Same procedure. Sensor can be accessed behind the right front wheel, on the manifold/muffler assembly. Be careful as this area WILL be hot if you have driven the vehicle prior to changing the sensor. For better access, the wheel might have to be removed. REMOVAL & INSTALLATION See Figures 1, 2, 3 and 4
Fig. 1: Never detach the oxygen sensor connector while the engine is running
Fig. 2: An oxygen sensor wrench is available from Ford or aftermarket manufacturers to ease sensor removal
Fig. 3: If reinstalling an old oxygen sensor, coat the threads with anti-seize compound. New sensors are already coated
Fig. 4: Oxygen sensors are located in the dual converter Y-pipe ---- They mount into the twin catalytic converters, they're not exactly "pre-cat". I think there's one before and one after the cat con. It also may depend on engine size, 3.0 or 3.8 liter. There are four O2 sensors. Two are in each of the exhaust manifold lines coming from the two sides of the V6 engine. In each branch, one sensor is before the catalytic converter and one is at the output of the catalytic converter 4- 02 senors 2 up stream and 2 down stream Ummmmm.... Which one? There are 4 or 5 on those ones....
Two - located before and after the catalytic converter.
Common results point to "You can not clean an O2 sensor, it must be replaced"
How can an oxygen therapy patient contract pneumonia?
In addition, bacterial contamination of nebulizer and humidification systems can occur, possibly leading to the spread of pneumonia.
Can too much oxygen be deadly for the human body?
- Yup. Here are some of the problems that can happen:
- Pulmonary edema (intensive-care patients on breathing machines at 30 hours or more exposure)
- Decreases in the rate of gas exchange across the alveoli (intensive-care patients on breathing machines at 30 hours of exposure)
- Chest pains that were worse during deep breathing (volunteers with 24 hours of exposure)
- Decrease in the total volume of exchangeable air in the lung (vital capacity) by 17 percent (volunteers with 24 hours of exposure)
- Local areas of collapsed alveoli when plugged by mucus, a condition called atelectasis (patients, volunteers). The oxygen entrapped in the plugged alveolus gets absorbed into the blood, no gas is left to keep the plugged alveolus inflated and it collapses. Mucus plugs happen normally but are cleared by coughing. Also, if alveoli become plugged during air breathing, the nitrogen entrapped in the alveoli keeps them inflated.
- blindness caused by inadequate development of the capillaries in the lens and retina of the eye (premature infants). Reducing the oxygen to 40 percent can prevent this blindness.
What are the signs of a bad camshaft sensor for a 2002 Dodge Intrepid?
symptoms of a bad sensor will be , engine cutting out then starting again as you drive. cutting out then being able to restart when vehicle is stopped. hard starting. if left long enuff before replacing, you will not be able to restart
What is the code po432 on a Chevy Silverado?
This code is on 2004 Chevrolet silverado po. 432 what does it mean or affects on this truck?
What is the probable cause of the check engine light on a 1998 Ford Explorer Sport?
This fixed it on my Ford. Part cost about $50 at the ford dealer. The oxygen sensor is located below the engine in the exhaust pipe before the catalytic converter and muffler. It is mounted in the pipe with wires going to it. You need a special socket to remove it in most cases but sometimes you can do it with a wrench. When replacing it be sure to put anti seize lubricant on the threads so it can be serviced again in the future. It came with the anti seize lube. Just make sure the anti-seize your using will not damage the O2 sensor your installing if your not using what was provided . Your best to find out if this is the reason the light is on, as it may be just a loose gas cap. Before you do anything, go to Autozone and use their loan a tool program to chech out an OBD-II code reader. Follow the instructions on the box, or if you don't feel comfortable doing it yourself (it's really easy), have one of the store employees do it for you. My check engine light came on this past winter, and it turned out that one side of the engine was too lean. I remember the light came on when I started the explorer on a particularly cold day. Anyway, once you reset it, it probably won't come back on unless there is something wrong with some component. Go to Auozone and have the code downloaded, then come back to this site and ask how to fix that code. Oxygen sensors usually go first, but you can get a light even from having a loose gas cap.
Where are the oxygen sensors located on 97 gmc jimmy?
They are all threaded into the exhaust system at various points.
P0137 = O2 sensor circuit low volts (bank 1 sensor 2). Could be a faulty B1 S2 O2 sensor.
Where would you find an oxygen sensor on a 1982 Toyota Corolla wagon 1.8 liter?
The O2 sensor(s) are generally located on the exhaust system beyond the exhaust manifold There may be more than one. typically there is one between the manifold and the catalytic converter. Generally they cost around $50 - $60 for each one.
Where is the oxygen sensor located on a Jeep Cherokee?
You really have two of them. The first one is leading from the headers into the exhaust pipe. Get below you Jeep and start looking in the general area under the driver's door. You should see a sensor sticking into the pipe with a wire at the end. I just got under the 92 I own and see the 4 wires going to an insert, screwed into the exhaust pipe just after the two parts of the exhaust maniofold join.
Where is the oxygen sensor on a Chrysler PT Cruiser?
There are to oxygen sensors on a 2004 Chrysler Sebring. They are located on the right side of the engine, against the firewall. Sensor 1 is located in front of the catalytic converter, and sensor 2 is located behind it.
Will a bad O2 sensor or Tps throttle switch prevent a car from starting?
Although maybe possible, most likely not probable. Symptoms of a bad tps include rough idling, fuel-rich signs such as fouled spark plugs, black smoke ROM the exhaust, etc. I have never seen a case where the symptoms were ignored to the point where the vehicle would not start.
Where is the oxygen sensor before located on 1996 acura 2.5 tl?
The 1996 Acura oxygen sensor can be found on the top of the engine. The oxygen sensor will be on the left-hand side of the air cleaner.
Speed sensor location 2000 Plymouth grand voyager?
the sensor is located in the differential housing on the back of the transmission. (this is the speedomoter sensor, it is in the housing that the pass axle shaft slides into) For the 3.3/3.8L, it is near the bell-housing facing the firewall, as it senses the magnets that are on the torque converter when it spins. (that is the engine speed crank position sensor)
Where is the location of bank 2 sensor 2 oxygen sensor for a 2006 Jeep Grand Cherokee?
It is located on the passenger side of the motor after the catalytic converter. The cat is at the end of the exhaust manifold, so the connector is accessible at the motor, the sensor is accessible from underneath the car.
Where is the oxygen sensor located in 2005 Chev Malibu?
The oxygen sensors in a 2005 Chevy Malibu are in the exhaust system. You'll find them at the end of the down pipes and behind the catalytic converter.
