Location of nox sensor 2011 2500 chevy duraxax 4x4 diesel

Tis a Vortec engine......

https://www.fixya.com/cars/t29743937-oxygen_sensor_1999_s10_v6_engine

getting is repaired by mechanic is obviously very expensive
I take help from online websites that have this service like helping in repair... some like reliable-store have instant help 24x7.. others are a bit slow which I don't prefer... rest is up to u.. U can also get free manuals

The Nox sensor is part of the emissions control system...Your truck may still be under warranty for this...check with your local Chevy dealer

Chevy 2500hd 2016 6 6 lol code p11cb

Confused on your question. If you are looking for the plug for your block heater, it should be on the drivers side of the block,towards the front of the engine. But keep in mind that a block heater is an option and not all trucks, especially non diesels, will have one. If you are looking for the knock sensor connectors, there are 2 of them and they are under the intake manifold. It will have to be removed to get to them.

Assuming this is a petrol engine, then it wont have a nox sensor. It will have an O2 sensor, which will be located in the exhaust pipe just before the catalytic converter.

If your transmission is part electronic, its the tps throttle positioning sensor. if its a diesel it will be on the passenger side of the injector pump, if it's gas same side. if it gets loose or goes bad you will have these problems. and your speedometer problem is likely the speed sensor located at the back end of the transmission. very easy to replace. the tps on a diesel not so easy. good luck!

I changed air bag front sensor myself $275 it's a 15 minute job and I know nothing about cars. Unplug battery, sensor is located dead center in front of hood.

Its located inside the hub.

nox is from running lean..... its realy high temps that cause this.......... replace the o2 sensors this should cure that any more help let me know