O2 sensors

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Apr 13, 2008 | 11:51 AM

thefnswits

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Joined: May 2005

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From: NEWTOWN, ct

O2 sensors

Hey i was goin to change my 02 sensors on my 99 5.4 and everyone says that I have 3 ...i only see two...whats up??

Apr 13, 2008 | 12:48 PM

thefnswits

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From: NEWTOWN, ct

I see one 02 sensor on each manifold downpipe, but none on the cat or even downstream of the cat where Ford and autozone all say i should have one. what gives?

Apr 13, 2008 | 04:17 PM

rebelyell618

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From: Llano and Huntsville, TX

my 2000 f250 5.4 has only 2 sensors, but i dont know about a 99 but i believe they would be the same.

Apr 13, 2008 | 06:23 PM

PartsPaul62

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Joined: Apr 2008

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From: Shawnee, Kansas

o2 or not o2

Send my the last 8 of the vin. I will check the Ford Parts Master Catalog.
(Hence the handle!!)

Apr 13, 2008 | 07:35 PM

PartsPaul62

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From: Shawnee, Kansas

After reading the parts catalog for awhile, i found that some applications such as yours do not have rear o2 sensors.

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