Question about 1996 Chrysler Town & Country

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Is there an easy way to replace the upstream o2 sensor or is it a pain in the neck

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Buy or borrow o2 sensor socket most auto stores let u borrow this tool or use wrench and its really a matter of jacking up and supporting van getting under van and removing o2 sensor from exhaust pipe and replace with new one

Posted on Mar 17, 2011

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Can an O2 oxygen sensor effect another sensor and give a false reading?

Check which side of your engine has cylinder #1. That side is bank 1. Bank 2 is the side opposite of bank 1. So bank 2 is not always passenger side. And since you seem to have extra O2 sensors, I would replace the other upstream and see what happens. Also the mass air sensor can give a trouble code issue to the upstream 02 sensors. Good luck. I've struggled thru this myself.

Mar 06, 2015 | Cars & Trucks

1 Answer

What is the specifications for the upstream form the CAT O2 sensor to test

The upstream Heated Oxygen sensor is said to be in good working condition if its voltage goes from low to high (100 mv - 900 mv) and vice versa in one to three times in a second.

Aug 07, 2014 | 2000 Toyota ECHO

1 Answer

What does trouble code P1153 mean?

The upstream (ahead of the catalytic converter) O2 sensor heater circuit has failed. Replaced the upstream O2 sensor and all will be well. O2 sensors wil lnot work below 650 degrees F. To get them functioning sooner after a cold start, and during times when the exhaust is not very hot (idling at stop lights), designers placed a filament inside the O2 sensors to keep them hot so they can measure O2 levels int he exhaust stream (which alloows the engine compouter to mete out the right amonut of fuel to keep the engine running efficiently.) The filament fails open after time so it no longer can heat the sensor. The only solution is to replace the O2 sensor, which is not a big deal.

Jul 10, 2014 | 2001 Lexus RX 300

2 Answers

Upstreram o2 sensor 2001 pt cruiser

its the o2 sensor behind motor on top of exhaust manifold. very easy to get to.

Jun 21, 2014 | 2001 Chrysler PT Cruiser

2 Answers

2000 navigator system too lean

Too Lean on which Bank of the Motor?

To have a lean O2 Code --you could have a rich fuel
condition & the pcm drove the fuel trim lean

Next you could have a vacuum leak-in the intake or exhaust system

Third you could have a failed O2 Sensor

Front or Upstream Oxygen Sensors get replaced at 100,000 miles

The front sensors are on the exhaust pipe between the motor &
the converter.

Will need a long handled flex head O2 Sensor Wrench

Mar 17, 2014 | 2000 Lincoln LS

1 Answer

I think I need to change the o2 sensor. I don't know where it is. I also heard it takes a special socket. Help if you can. Thanks in advance. Glen

get the car up on a lift and follow the exhaust from the tail pipe forward. you will find a large bump in the pipe near the transmission, this is the catalytic converter. if your car was made after 1994, there
will be an O2 sensor in front of and behind the catalytic converter. these are called the upstream and downstream sensors. the upstream one may be so upstream that it is actually screwed into the exhaust manifold. buy one of each sensor, take it to a muffler shop and pay them 20 bucks to install for you. with a lift it is so easy and they have a long-*** wrench there just for that purpose. doing this laying on your back in the gravel is a pain and they are so rusted in that you will see why a long-*** wrench is needed to make it quick and easy. do yourself a favor and spend an extra few bucks and get sensors which are made to plug right into your cars wiring, not generic ones which have to be figured out.

Jun 26, 2011 | Chevrolet Cavalier Cars & Trucks

1 Answer

I have replaced the o2 sensor the upstream one

i find most o2 problems aren't o2 problems they are fuel delivery problems like partly plugged fuel filters or temp sensors or dirty air filters the worst ones are bad catalytic converters that is always last resort

Mar 12, 2010 | 1997 Mitsubishi Mirage

1 Answer

Replace oxygen sensors

these engines have 1 upstream o2 sensor and 1 downstream o2 sensor..the 1 in the rear exhaust manifold is the upstream and the 1 after the converter is the downstream..make sure you replaced the right one

May 15, 2009 | 1998 Plymouth Grand Voyager

2 Answers

Check engine light

Sometimes can be prematurely dirty air filter, sets off the air flow sensor, which sets off the o2 sensor. So might try new air filter first and erase codes and then see, before you spend more bucks than you need; then if codes return, do the flow mix sensor.

Apr 19, 2009 | 2006 Honda Civic Hybrid

1 Answer

O2 Sensor

Well, Bank 1 is the passenger side of the vehicle. Are you replacing upstream or downstream 02 sensor?

The upstream is in the exhaust manifold. The downstream is further down in the exhaust pipe. Upstream would be designated by the code HO2S1- B1 and the downstream would be indicated HO2S2-B1.

In either case, you basically unplug the wiring connector, use a 7/8 wrench (or an O2 sensor socket which has a groove cut in the side to allow the wiring to not be pinched) and loosen the sensor and install the new one (with anti-seize on the threads) and plug the connector in.

The upstream sensor is pretty easy- the downstream can be a little more difficult, but is not too bad.

Hope this is helpful!!

Nissan Scope Technician- 10+ years experience in Nissan dealership.

Oct 28, 2008 | 2002 Nissan Xterra

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