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the O2 (oxygen) sensor on a 93 gmc is in the left down pipe of the exaust Y pipe
Could be a diesel? If not then replace your oxygen sensor on your exhaust. A bad oxygen sensor causes the exhaust smoke to be dark in color.
where is knock sensor on a 2001 sierra 5.3 2wd 1500.
It doesn't have an oxygen sensor.
As you are looking at your truck from the front the knock sensor shoud be on the passenger side right under the manifolds
THE ONLY POSSIBLE ANSWER IS: MAYBEYou need to provide the following information:Year1500 or Sierra or Half Ton or 2500 or 3500Engine size.
The computer uses the oxygen sensor reading from the exhaust to adjust the amount of fuel injected into the engine.
The oxygen sensor on a b2500 Mazda is located in the exhaust. It is under the truck about even with the transmission.
There are 4 o2 sensers they are located on both ends of the catalytic converters. They look like spark plugs sticking into the exhaust pipe.
On the 98 u have two oxygen sensors an upstream and a downstream. The upstream oxygen sensor is located closer to the front of the truck by the transmission. The downstream oxygen sensor is located on down torwards the back of the truck along the side of the frame.
Yes
No.