Tuesday, October 29, 2013
How to Install Oxygen Sensors on a 1998 Mercury Mountaineer
The oxygen sensors in the exhaust system of your 1998 Mercury Mountaineer help the fuel system regulate the amount of fuel burned by the engine. If the oxygen sensors fail, you may notice a drastic decrease in the fuel mileage of your truck. The 1998 Mountaineer is equipped with four oxygen sensors. There is a sensor on each side of both catalytic converters. Buy replacement sensors from an auto parts retailer.
Instructions
- 1
Lift the truck with a jack to support it with jack stands. Locate the oxygen sensors on each side of the dual catalytic converters in the exhaust system.
2Disconnect the wiring harness at the top of the oxygen sensor. You can pull the connector apart by hand. Remove the oxygen sensor with an oxygen sensor socket and ratchet.
3Thread the new sensor into place by hand to prevent cross threading. Torque the sensor to 30 pound-feet with your torque wrench. Connect the wiring harness by pressing the electrical connection together.
4Repeat the process for the remaining sensors you want to change. Raise the truck slightly and remove the jack stands. Lower the truck to the ground.
Thursday, October 24, 2013
How to Find the O2 Sensors on a 2008 Softail Deluxe
Your 2008 Harley Softail Deluxe has both a primary and secondary O2 sensor. The primary O2 sensor is located under its own plastic cover, mounted to the front of the engine. The secondary O2 sensor is plugged into the wiring harness, located to the right of the oil tank on the right side of the bike. Accessing your motorcycles O2 sensors may be necessary in order to perform various electrical or engine modifications.
Instructions
- 1
Remove the two bolts at the rear of the seat. Slide the seat back, and remove it from the bike. Underneath the seat is the battery, as well as various parts of the engine wiring system. Use a Phillips-head screwdriver to disconnect the negative battery cable to prevent an accidental short circuit.
2Remove the plastic primary O2 sensor cover, mounted to the front of the engine. This is secured by a plastic clip that can be undone by hand. Underneath the plastic cover is a black wired plug, which is the primary O2 sensor.
3Search along the right side of the motorcycle for the secondary O2 sensor. It is located just to the right of the oil tank, mounted just above the exhaust pipes. The secondary O2 sensor looks exactly like the primary sensor, and is connected into the engine wiring harness, tucked within the chassis frame.
