Question about Cars & Trucks
Most all O2 Sensors are 7/8"-22mm (same size)
May get a wrench to fit without buying an O2 Tool
Posted on Jul 10, 2013
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Posted on Jan 02, 2017
SOURCE: change oxygen sensor
Under hood, center, front engine area, above exhaust
pipe flange, mounted in exhaust manifold
Under hood, center, rear engine area, above exhaust pipe flange, mounted in exhaust manifold
The oxygen sensor may be difficult to remove when the engine temperature is below 120°F (48°C). Excessive force may damage the threads in the exhaust manifold of exhaust pipe.
NOTE A special anti-seize compound is used on the oxygen sensor threads. The compound consists of liquid graphite and glass beads. The graphite will burn away, but the glass beads will remain, making the sensor easier to remove. New or service sensors will already have the compound applied to the threads. If an oxygen sensor is removed from the engine and if for any reason, it is to be reinstalled, the threads must have this anti-seize compound applied before installation.
Fig. Location of the rear O2 sensor
Fig. Location of the the front O2 sensor
Fig. Use a wrench or special socket to loosen the O2 sensor
Fig. When replacing or reinstalling an oxygen sensor, be sure to lube the threads sufficiently
Posted on Jan 19, 2010
Normally you'll find at least one before the catalytic converter & after. You'll have to look real close at manifolds as they route from cylinder head then down , and then follow exhaust pipes to & after catalytic converter.
Posted on Jun 02, 2009
its simple to do. just unplug the sensor and unscrew it. if its frozen and hard to break loose, then just heat the base the part of exhaust that it goes into.
Posted on Mar 01, 2010
SOURCE: remove oxygen sensor
There is no special tool needed, try spraying WD-40 on it to loosen it up, or try using a Breaker Bar or Pipe on the wrench for more leverage. It has received alot of heat there in its lifetime and could be very tight and could have welded itself to the bung. When you reinstall a new one put some Anti-Seize Compound on it so you won't have that problem next time.
Posted on Jun 03, 2010
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