Question about 2003 Chrysler PT Cruiser

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How do I change the oxygen sensor in a 2003 pt cruiser?

The auto parts store guy told me it was the one that is next to the exhaust..

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It should be on exhaust downpipe

Posted on Nov 21, 2008

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1 Answer

Where is the oxygen sensor on Chrysler pt cruiser


There are 2 oxygen sensors located in the exhaust system One around the exhaust manifold and the other behind the catalytic converter

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I hope that you have found this information to be useful, and if I can be of any further assistance, please let me know. Thank you for using fixya!

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1 Answer

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PO133 indicates that your front oxygen sensor is not controlling the engine properly .. thats usually a bad oxygen sensor .... in some cars thats easy to change. you could do it if you have any mechanical abilities .. in other cars its nearly impossible, it takes special tools and patients beyond human .. hopefully yours is one of the easy ones .. the part itself might be less than a hundred bucks at an auto parts store but more than that at a dealership . other things that can cause this ... if the wires going to the oxygen sensor are damaged .. and if there is a significant exhaust leak (you should hear that) .. usually changing the oxygen sensor will fix the problem ..it has wires going to it and it screws into the exhaust system somewhere between the engine and the catalytic converter. if you give your auto parts store the make, model, year and engine size of your car then they can probably show you where to find the sensor .. if you are not mechanically inclined then find a mechanic with a good reputation forget lowest price .. i find that often the auto parts store can recommend someone if you ask ..

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2 Answers

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check the battery and make sure it has a fully charge,also check to make sure the start motor pinion is not jammed in the flywheel, and check the coil pack to make sure have spark.also check the crank sensor

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1 Answer

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try checking for a vacume leak it will mimc o2 sensor issues

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