Question about 2004 Chevrolet Malibu
Where are the oxygen sensors located on a 2004 malibu classic
Posted by Anonymous on
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Posted on Jan 02, 2017
Ther are at leat 3 and maybe 4 o-2 sensors in that particular truck...one on each exaust pipe coming down from manifold...and one after convertor on each bank....Pass.side before convertor is bank one,sensor one ..behind convertor is bank one sensor two..drivers side before convertor is bank two,sensor one...behind convertor is bank two sensor two(If equipped with four....scan will tell you which one is bad....good luck..lee
Posted on Mar 28, 2009
Oxygen sensors are always numbered like this:
Bank 1 sensor 1
Bank 2 sensor 1
Bank 1 sensor 2
Bank 2 sensor 2
some manufacturers use a kind of shorthand that reads different, but means the same thing:
Sensor 1/1 or O2s 1/1
Sensor 2/1 or O2s 2/1
Sensor 1/2 or O2s 1/2
Sensor 2/2 or O2s 2/2
Bank 1 is always the side of the engine where cylinder number 1 is located and, of coarse, Bank 2 is the opposite side.
On a 4 cylinder engine, there is only 1 bank and it is always referred to as Bank 1.
Sensor 1 is always the upstream sensor (The one located BEFORE the catalytic converter)
Sensor 2 is always the downstream sensor (the one that is located AFTER the catalytic converter.
Most GM engines have #1 cylinder located on the left bank, (or Driver's Side) of the engine,
So, the answer to your question would be that you are looking for the sensor located before the catalytic converter on the right (or Passenger Side) of the truck.
Posted on Oct 17, 2009
Standing at the front of the car looking at the intake manifold, its on the right hand side of the manifold about 6 inches down from the valve cover under a black cap with a 32mm top on it.
Posted on Jan 04, 2010
There are 2 oxygen sensors on the 2004 Impala, located under the car near the CAT converter.
Jack up the passenger side or onto ramps to make easier acess.
Posted on Feb 03, 2011
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