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Our company was established in 2003, we have been committed to supply all kind of fuel injection parts in the auto aftermarket. We master the comprehensive EFI expertise and reliable supply channels and we have established long-term cooperative relationships with several domestic and overseas factories. Our mainly product are ignition coils, oxygen sensor, nox sensor,parking camera, parking sensor,crankshaft position sensor,fuel injectors, air flow meter, knock sensor,throttle position sensor,oil pressure sensor,parking sensor, window switch etc. Upstream # 234-4076 Compatible part number: ES20043, 2131375,2131371, 4606421, 4606620, 4686222, 5269744,56041212, M0526974 Downstream # 234-4078 Compatible part number: SG1695 SG1820, 5033081AA, 56041056,56041219, 13138 13440 2344078, 23088 SG466 Package Included: 234-4076(4 wire-Oxygen Sensor): Upstream 1X 234-4078(4 wire-Oxygen Sensor): Downstream 1X Applications:
Check if this fits your vehicle $88.95 $88.95 Prices may vary online, in stores, and in-app Free shipping, arrives by Thu, Sep 29 to Want it faster? to see options Sold and shipped by Go-Parts | Parts Dynasty Corporation 188 seller reviews Return policy Maxfavor 234-4668 1 Pack Oxygen Sensor for Upstream Downstream Chevy 1500 5.3L GMC 15284 O2 Sensor  Sponsored current price $23.00 Maxfavor 234-4668 1 Pack Oxygen Sensor for Upstream Downstream Chevy 1500 5.3L GMC 15284 O2 Sensor3+ day shipping Notice unusual marketplace activity? ReportA bad oxygen sensor can make your Jeep run rough and exhibit a number of unpleasant symptoms. Thankfully, replacing it is relatively easy and inexpensive. This article applies to the Jeep Grand Cherokee WJ (1999-2004). Oxygen sensors measure the oxygen content in the exhaust gasses exiting the engine. This measurement of oxygen is commonly referred to the "Air:Fuel Ratio (AFR)," which is measured in parts of oxygen to part of fuel gasses. The PCM (powertrain control module) uses the inputs from these oxygen sensor to control engine performance. If the AFR is either too rich (too much fuel, i.e. 9:1 AFR) or too lean (too much air, i.e. 16:1 AFR), then the computer needs to adjust other parameters to compensate. However, as these sensors wear and age, they can be prone to becoming unreliable, giving incorrect readings, or ceasing to give readings all together, which causes engine performance to suffer greatly. Generally speaking, if your oxygen sensors make it past 100,000 miles, then you're a lucky one. If your Jeep is about due, then consider this an excellent idea of preventative maintenance and replace that old oxygen sensor. Materials Needed
Step 1 – Remove oxygen sensorBefore beginning, disconnect the battery. Then crawl underneath your Jeep on the driver's side. If necessary, you can jack up the front of the car and place it on jack stands if you don't fit underneath while it is on the ground. The O2 sensor is located on the exhaust pipe, close to the engine. Look at the catalytic converter and follow it forward to locate the sensor. Slide the oxygen sensor wrench over the sensor and twist it counterclockwise to unscrew it from the pipe. Disconnect the harness connected to the sensor and remove the sensor. Step 2 – Install new oxygen sensorConnect the wiring harness to the new oxygen sensor. Set it in the exhaust pipe and hand-tighten. Use the oxygen sensor wrench to finish tightening the sensor until it is snug, but not too tight. Reconnect the battery and start the car. Featured Video: How to Replace Oxygen SensorRelated Discussions
How many O2 sensors does a 2000 Jeep Grand Cherokee have?Two sensors are used: upstream (referred to as 1/1) and downstream (referred to as 1/2). With this emission package, the upstream sensor (1/1) is located just before the main catalytic convertor.
What is the difference between bank 1 and bank 2 on O2 sensor?Brian, the questions I am asked most often about O2 sensors is how do you know what is Bank 1 or Bank 2, which O2 sensor is Sensor 1 or Sensor 2. Bank One is always the bank where cylinder number one is located. On the Corvette it will always be the driver side. Bank Two is the passenger side.
How do I know which O2 sensor is bank 1?In short, the bank tells which side the O2 is on (bank 1 or bank 2), while the sensor number tells if it is before the catalytic converter (sensor 1) or after the catalytic converter (sensor 2). Remember that bank 1 is determined by the side in which cylinder number 1 is located.
How many O2 sensors does a Jeep Cherokee have?It has 4 sensors that are all the same model.
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2000 jeep grand cherokee oxygen sensor location
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