If the 5.3L is the same as my 4.8L, which it probably is, there is one located upstream from your catalytic converter, and one located downstream of your catalytic converter. They are not that far from the cat. There is 2 on each side; 1 set for each catalytic converter. 4 in total.
How to replace o2 pre converter gmc 1500
Driver side, after converter.
Right after the catalytic converter
remove and replace.
There is more than one O2 sensor in that vehicle and they are all threaded into the exhaust system at various points.
Bank 2 is the right side of the motor if sitting in the seat and sensor 1 is the first 02 sensor that is in the exhaust manifold.
back 2
i have dodge intrapid 2.7l my 02 sensor light come on p0051
There are several 02 sensors on that vehicle and they are all threaded into the exhaust system at various points.
There are two in the exhaust system on the rear of the engine.
There is on on each side of the catalytic converter in the exhaust.
Where is the starter localed on a 02 gmc envoy?