Question about 2004 Dodge Ram 1500
Where is the oxygen sensor(s) located on a 2004 dodge ram 1500 with a 5.7L fuel engine?
I believe you may have three (3) O2 sensor, (2) of the sensor is on ether side of the exhaust down pipe and some times called up stream O2 sensor, the third O2 sensor know to some as the down stream O2 and is after the Catalytic converter.
The up stream O2 monitors the left and right side banks and sends signals to the ECM to make the adjustments to the injectors to keep the proper air/fuel ratio.
The down stream O2 monitors the catalytic converter and sends signal to the ECM if the catalytic converter has gone bad.
Good luck and hope this helps. If you get it scanned at Auto Zone, they should be able to let you know which O2 has gone bad so as to not change all three. You could always check the wire harness to the down stream O2 for corrosion. Keep me posted
Posted on May 29, 2009
Under the truck, driver side exhaust pipe, there are 2, 1 is before the catalytic converter, the other is after. They screw into the side of the exhaust pipe.
Posted on May 29, 2009
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Posted on Jan 02, 2017
im not for sue how many but u need to take it to autozone if u have one where u live they will tell u where it is the most comon one if u have straight eguast is the one right in front of the cats if its that one u should notice a stall out every time u fill up from below empty on ur gauge
Posted on Mar 18, 2009
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