How many O2 sensors are there on a 1998 mercury mystique?

Answer 1

Oxygen Sensor There are actually (4) O2 sensors on your truck. If you look inside the wheel wells behind the fender liner, right about where the frame is one O2 sensor, the other is underneath the truck about half way back in relation to the transmission. If you see where the exhaust joints together, you went about 6" too far.

When you start looking at the O2 sensors, they are normally numbered something like "Bank 1 Sensor 1" Bank 1 is on the passenger side; Bank 2 is on the driver's side. Sensor 1 is the upstream sensor (near the frame, between the block and the cat) and Sensor 2 is near the Y-pipe (downstream of the cat).

Normally it is the upstream sensors (sensor 1) that go first. They see the harshest conditions. You will need; Oxygen Sensor Socket Anti-Seized Penetrating Oil Sometimes it will take 15 minutes or take a few hours it depends on your luck…

Answer 2

According to my Haynes Explorer Repair Manual :

A 1997 Ford Explorer , 5.0 liter V8 engine has

( a total of 4 oxygen sensors )

Answer 3

i believe four,before and after the cat converters

Answer 4

4 - 2 before the catalytic converter and 2 after

Answer 5

Oxygen sensors are located in the exhaust manifolds & in front pipes, should have 4

Answer 6

Four- one on each exhaust manifold and one on each catalytic converter. Thank you have a good day

Answer 7

2, one before the cat (upstream) and one after the cat (downstream).

Answer 8

4