answersLogoWhite

0


Best Answer

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.






User Avatar

Wiki User

11y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Where are oxygen sensors located and what are the names - designations - Windstar?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

Where are oxygen sensors located on a Ford Windstar LX?

There are 2 oxygen sensors one upstream and one down stream. Both oxygen sensors are located underneath the van. The down stream oxygen sensor is located behind the cataylic converter near the cross pipe and the upstream oxygen sensor is located in front of the cataylic converter in plain sight. They look like spark plugs with either 8", 12", or 14" wires attached to them. The upstream oxygen sensors is easily located underneath the vechicle to the front. The downstream oxygen sensor is not the one lcoated on or close to the cataylic converter.


Where is 92 cadillac sedan 4.9 oxygen sensors?

The oxygen sensors are located in the exhaust pipes.


How many oxygen sensors are on a 1998 Ford Windstar GL?

There are two sensors.They are located on the y pipes above the catalytic converters "There are actually four--2 before the converter and 2 after the converter...


Where is the oxygen sensor located on a 99 Honda Civic LX?

oxygen sensors are located just forward of your engine. In front of the engine is the catalytic converter. At the top at the bottom are your oxygen sensors.


Where is Location of oxygen sensors on 2001 rx350 Lexus?

Wher are the oxygen sensors located on a 2001 rx300 Lexus SUV


Where are the oxygen sensors located on 2001 5.3L Chevy Tahoe?

How many oxygen sensors are there for a 2001 Chevy Tahoe 5.3L


Need picture diagram for 2003 ford windstar where oxygen sensors are?

Get under it and look at the exhaust pipes, you will spot them easily.


Where is the oxygen sensor located on a 1998 Chevrolet Malibu?

All oxygen sensors are located in the exhaust system.


How many oxygen sensors does a 1992 Oldsmobile cutlass supreme have?

The 1992 Oldsmobile Cutlass supreme has two oxygen sensors. Both oxygen sensors are located on the outside of the air cleaner housing.


Where are the Oxygen sensors are on a 1988 Pontiac Bonneville SSE?

Oxygen sensors are located in the exhaust manifolds & in the exhaust pipes on most vehicles


Where is the oxygen sensor located on a Saturn?

All oxygen sensors are located in the exhaust either before or after the catalytic converter.


Where are the oxygen sensors located in the 2000 Pontiac Montana?

they are located in the exhaust system Where ? how many 02 sensors on a 2003 Pontiac Montana