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Replacing the O2 Sensors
on a Mustang
This covers
all Mustangs with 5.0 O2 Sensors.
Costs : $77.98
Purchased from: Auto Zone
Tools
needed: vise grip pliers or a 3/8" o2 socket
On a related note this tune up includes
several sections to this install you may not need to do all of the
items that we did.
On to the Tune Up
Step 1:
 Let the car sit over night and always start your day off by having a
good meal.
The reason for waiting till the morning after you purchase
the items is to let the vehicle cool.
Step 2: 
 As you can see we laid out all the items that we were replacing and a
few other as well such as the fuel filter and O2 we will discuss later in the
Tech section.
Step 3: We started by chalking the tires, jacking the car up, and
securing it on jack stands. For safety reasons, I always slide the
tires under the car as well that way if it does fall it does not fall
far





Step
4: After securing the car slide under and look up past the stock of
aftermarket x or h pipe beside the transmission pan.
Step 5:
Next remove the electrical connector and loosen the old o2 with the vise
grips or use your o2 socket and remove it.
Step 6: Install the new o2 with the pliers or the o2 socket reconnect the wire.

Step 7: After installing your new o2 (while you have your tires off inspect
your brakes for wear) jack the car back up reinstall the tires remove
the jack stands tighten up the lug nuts to the correct specifications
lower the car re-check all the lug nuts put the caps back on and crank
it back and your done do not forget to remove your chalks.




Note do not go
and have your car inspected right away after replacing the O2 your
on-board will need to have time to record data.
Driving 200 to
300 miles after replacing is kinda the norm here.
Special Thanks to
Jallen0002
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