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How many oxygen sensors are there in the 2003 Dodge Durango?
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5 answers
★ Top Answer
The 2003 Dodge Durango will be equipped with two oxygen sensors positioned on the vehicle, both located on the catalytic converter - one upstream and the other downstream. O2 sensor failure is a common issue, but fortunately, it is easy to rectify. Replacement oxygen sensors are budget-friendly, priced at around $15 to $20 each or $25 to $35 for a pair. To replace them, simply access the catalytic converter and locate the old sensors on each side. Disconnect the wires, install the new sensors, and the process should be quick and straightforward.
More answers
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One oxygen sensor is located before the catalytic converter, while another is located after it.
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There are a total of four oxygen sensors on my 2003 4.7, with two located right under the exhaust manifold and another two positioned about a foot lower, beyond the small catalytic converters. It's important to note that this vehicle is designed for California emissions standards.
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I was confused because my scanner indicated four issues, with two for each bank. However, when I tried to replace them, I found I only had one converter and two O2 sensors. The check engine light turned off, but there are still stored error codes for the Bank 1 upstream and downstream O2 sensors, which I don't understand why it's showing since I don't have those sensors.
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