Question about 2004 Lincoln Town Car

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How do you change sensors 02 and where are they located on 2004 Lincoln TC Ultimate? Thanks

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Jack up the front of the car both sides using jack stands to support vehicle on frame rails. then locate sensors usually either on the exhaust manifolds or just below on the pipe coming out of the engine exhaust manifold, unplug wire from sensor and use the appropriate size box end wrench to remove sensor occasionally a map gas propane torch must be used to heat the old sensor up for 3-5 minute before it can be removed, if the plug is to big to fit through the box end side of wrench cut the wires to slide wrench over sensor

Posted on Jul 03, 2009


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Can I get a copy of the procedure to change the 02 sensor on a 2004 Lincoln Aviator?

You don't need a copy of anything

All O2 Sensors are in both ends of the
exhaust converters on lincolns

All you need is a 22mm or 7/8" wrench

You will be changing only the front (2) sensors,
the ones closest to the engine at 100,000 miles
or when they fail

Ideally the check light or wrench etc & codes
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Assuming you won't know or have what is necessary
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Check that the rear monitor O2 sensors are tight
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I have a 2004 lincoln aviator on thursday the check engine light came on took it to a mechanic and he said the o2 sensor was bad and on saturday the check transmission light came on!!! is it because of...

Sorry, they are not related.
O2 Sensor has to do with the fuel and emissions of the vehicle. Usually the O2 sensor replacment is a simple job, much like changing out a spark plug. the sensor cost about $35 part only. But there are 2 of them. Your mechanic or part shop can test them.
The check transmission light could be noting more that low fluid. Haw you had the vehicle in to have the scheduled transmission oil change?


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Hi, be sure to oil the o-ring and twist the new sensor as you push it in.. Please let me know if you have more questions, and thanks for using FixYa.


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2002 lincoln ls

are you handy with tools???
get youself a hayes manual. start there.
if not better let teh pro. do the job.

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