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The heated oxygen sensor is located on the exhaust forward of the catalytic converter and the catalytic converter sensor is located aft. Don't mix them up.
CAUTION: Disconnect both battery cables and allow metal to cool. Disconnecting both battery cables will reset computer settings.
Lift vehicle and support safely. A drive up lift or pit that allows standing is best.
The heated oxygen sensor connector is located above the transmission, best reached with the right hand, up the right-side, using a 3/16" straight-slot screwdriver to release the lock.
Then using special tool or crescent wrench, remove the sensor.
Apply high-temperature anti-seize to new sensor, install hand-tight, and a gentle, but firm wrench tight, will hold it.
Count tools.
Safely lower vehicle.
Reconnect battery, (+) positive first, then (-) negative.
Start and hold key to start position for 30 seconds.
Fill gas tank and drive 200 miles without shutting the engine off.
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∙ 13y ago
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Is there more that 1 oxygen sensor in a 1991 Ford Ranger?
motorcraft . com just shows ( 1 ) oxygen sensor for all available engines in a 1991 Ford Ranger
Where is the coolant temperature sensor for a 1997 Ford Ranger?
Which engine do you have?
Does a 1988 Ford Ranger have o2 sensors?
I'm not a mechanic / technician but on a 1988 Ford Ranger there might be ( 1 ) oxygen sensor ( upstream sensor )
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The O2 sensor after the catalytic converter.
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you can breath
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unplug the clip from the sensor. if your replacing it, you just unscrew the sensor
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