Questions & Answers for: GMC Sierra o2 sensor

...on a gmc and were is it located 2006 gmc sierra 6.0 litre it has to do with o2 sensor. The o2 sensors in that truck are heated. You probably have a bad o2 sensor if you have a code for a 02 ...

O2 sensor issue. Hi I have a GMC Sierra 1500 4.3L V-6 with a O2 sensor problem. I replaced it with a new one and cleared the ECM/PCM by disconnecting the battery cable (-). I tested it again using the

fire when put into gear. I read codes says O2 sensor heater circuit malfunction (bank 2 sensor 1) Is this part of my problem? Yes bad o2 sensor,check for vacuum leaks also.do you cross your plug wires

O2 sensor Where do I find the O2 sensor and how do I replace it? Follow your exhaust pipe/pipes leaving the engine in a rearward direction and the O2 sensor will be just before the catylitic converter

...O2 Sensor Heater Circuit (Bank 1 Sensor 2) P0142....O2 Sensor Circuit Malfunction (Bank 1 Sensor 3) P0143....O2 Sensor Circuit Low Voltage (Bank 1 Sensor 3) P0144....O2 Sensor Circuit High Voltage ...

...blow? Hi, there are a number of trouble codes associated with the O2 sensors. Some indicate a sensor failure and others indicate a different problem. Can you tell me the trouble code you are

...O2 sensor. If the symptom does not return replace the other O2 sensor. I'm betting one of them is stuck lean. This would cause one bank to run to rich. You should be able to see this with a scan ...

...o2 sensor 1. everything was fine for a week and now it is throwing p0053. any ideas? Code 53 is for a problem with the heater in the O2 sensor for bank one sensor one. It could be something in the ...

...O2 sensor heater.... if you have a scanner to read data. Don't start engine the voltage should be around 450mv key on wait 3 to 5 minutes....the O2 sensor voltage should raise toward 900mv. if it ...

how many o2 sensors do I have on a 1993 gmc seirra I believe the 93 Sierra has only one O2 sensor. It is in the manifold on the drivers side. This assumes the 5.7L motor.