Mountaineer AWD V6-4.0L (2008)
1
Remove the OSS sensor screw.
2
Remove the OSS sensor from the transmission.
^
Inspect the OSS sensor O-ring for damage. If damaged, install a new O-ring.
Installation
All vehicles
1. Inspect the O-ring seal for damage. Install a new seal if damaged. Lubricate the O-ring seal with petroleum jelly to prevent damage to the O-ring
seal.
1
Install the OSS sensor into the transmission.
2
Tighten the OSS sensor screw.
^
Tighten to 14 Nm (10 lb-ft).
2. Connect the OSS sensor electrical connector.
3. Connect the HO2S connector to the transmission case.