Question about 1997 Oldsmobile Achieva

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Where are the oxygen sensors located on a 97 olds acheiva? I bought two. One has longer wire than the other. Which one goes where?

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The sensors screw into threaded flanges on the exhaust pipe. There will be one before the catalytic converter called the "upstream" sensor. It will have the short wire. The second, or "downstream"sensor has the long wire and is located after the catalytic converter. You can purchase a special tool for removing the sensors. If the sensors are positioned so as to allow the use of regular hand tools, you may be able to change them without the special tools. It is best to change the sensors while the exhaust pipe is cold. A hot exhaust pipe will cause the threaded flange to expand, making removal more difficult.

Posted on Mar 14, 2011

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It will be very much appreciated if you could send me the information about how to replace the O2 sensors on a 1998 chrysler sebring convertible.


Hello, Eventually your Chrysler Sebring's oxygen sensor will go bad and need to be replaced. The oxygen sensor regulates the oxygen-to-fuel ratio in your vehicle. It also controls your gas mileage. It senses when more or less oxygen needs to be pumped into the fuel lines. If it fails, your Sebring will run poorly and won't get very good gas mileage. Knowing how to change it yourself can save your money. Here are the instruction to change o2 sensors.
Locate your Sebring's oxygen sensor on the pre-catalytic converter. This is located near the front right wheel well of your vehicle. Apply some anti-seize paste to the threads of the new oxygen sensor. Be careful not to get any of the paste on the sensor itself, or it will be ruined. This makes for easy removal of the sensor next time.Remove the old oxygen sensor, using the 7/8-inch wrench. Find the stock sensor wire near the engine-loop lift. This will be by the firewall of your Chrysler Sebring. Splice the stock sensor wire and connect it to the new oxygen sensor's wire, using crimp connectors.Remove the large air-intake pipe that runs from the air box to the rear turbo. Then remove the two smaller air pipes that run from the air box to the blowoff valves. This will give you access to the oxygen sensor. Soak the old oxygen sensor in WD-40 to loosen it. Screw in the sensor by hand. Use the wrench to fully tighten the oxygen sensor so it cannot be removed by hand. Replace the air pipes to the correct valves again.

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