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Oxygen Sensor There are actually (4) O2 sensors on your truck. If you look inside the wheel wells behind the fender liner, right about where the frame is one O2 sensor, the other is underneath the truck about half way back in relation to the transmission. If you see where the exhaust joints together, you went about 6" too far.
When you start looking at the O2 sensors, they are normally numbered something like "Bank 1 Sensor 1" Bank 1 is on the passenger side; Bank 2 is on the driver's side. Sensor 1 is the upstream sensor (near the frame, between the block and the cat) and Sensor 2 is near the Y-pipe (downstream of the cat).
Normally it is the upstream sensors (sensor 1) that go first. They see the harshest conditions. You will need; Oxygen Sensor Socket Anti-Seized Penetrating Oil Sometimes it will take 15 minutes or take a few hours it depends on your luck…
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∙ 15y ago
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What is bank 2 sensor 1 on 2003 ford expedition?
Bank 2 is the drivers side of the engine in a Ford Expedition Sensor 1 would be in the exhaust close to the engine before the exhaust enters the catalytic converter ( upstream )
Where is bank 2 on a 1998 Ford Expedition?
Bank 2 is the drivers side of the engine in a Ford Expedition
Where is bank 2 on 1999 Ford Expedition?
Bank 2 is the drivers side of the engine in your Ford Expedition
Where is bank 1 on a 2003 Ford Expedition with a 4.6L engine?
On a Ford Expedition : Bank 1 is the passenger side of the engine ( 4.6 and 5.4 )
Where is bank 2 on a 2000 Ford Expedition 5.4?
Bank 2 is the drivers side of the engine in a Ford Expedition
Where is bank 2 on 1997 expedition 5.4 V8?
Bank 2 is the drivers side of the engine in your Ford Expedition
Where is bank 1 and bank 2 on a 04 Ford Expedition?
Bank 1 is the passenger side of the engine and bank 2 is the drivers side of the engine in a Ford Expedition
Where is Bank-1 located on 2003 ford expedition Eddie Bauer 5.4 v8 engine?
On a Ford Expedition : Bank 1 is the passenger side of the V8 engines
What side is bank 2 on 2000 4.6L Ford Expedition?
Bank 2 is the drivers side of the engine on your 2000 4.6 liter Ford Expedition
Where is bank 1 sensor 2 on a 2003 ford expedition?
Bank 1 is the passenger side of the engine Sensor 2 is after the exhaust gas has passed through the catalytic converter ( downstream ) also known as a catalyst monitor
Where is bank 2 sensor 2 located on a 1997 ford expedition 4.6L?
Bank 2 is the drivers side of the engine in a Ford Expedition Sensor 2 is after the catalytic converter ( downstream )
Where are the sensors bank 1 sensor 1 and bank 2 sensor 1 located on a 2003 ford expedition motor 4.6?
Those are the oxygen sensors in the exhaust above the catalytic converters.
