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There are 4 total. 2 upstream and 2 down stream... both front ones are before cats and rears are after cats. front drivers side is very easy to spot on left side very visible rear is farther back a bit ways past the cat the passengers side front is approx 2ft. fast where the exhaust manifold ends sitting up on top of the exhaust pipe inches before the cat and the rear one is located same position up ontop of the pipe only 2 inches after the cat. the right ones are there but harder to find, they attach in there harness way up on the side of the tranny, one has a green clip/harness and the other has a blue clip/harness... they are there, youd swear they werent but all 4 are there all toward the front half of the vehical just need to look up ontop of the pipes to see them, the harness are a pain to get to on the pass side sensors, good luck!

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โˆ™ 2015-07-16 18:16:16
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Q: How many o2 sensors are there in a 1998 Ford Explorer xlt with 5.0 engine and where are they located so far i have found 2 both under the truck 1 under drivers side and 1 under right rear passenger?
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