How do you replace heat sensor on a 1998 mailbu?

more information is needed for a

precise answer. As in what engine? The 2.4 or 3.1?

Also what temp sensor. I can't tell

you a location without more info but the sensors are easy to

replace depending upon location. Make sure the engine is cool

enough to touch.

You can either drain the coolant

system or swap the sensor real fast.

Make sure you use thread sealer on

the new sensor. Do NOT use thread tape on sensors. Use a liquid

pipe thread sealer. Using tape can and will block the ground

between the sensor and engine if use that way. Disconnected the

battery, negative side first.

Unclip the old sensors wiring

connector. Unscrew the sensor turning it counter clockwise. If you

have not drained the system and are going to swap it fast. Unthread

the sensor just till it starts leaking and get the new sensor

ready. With one hand hold the new sensor next to the old one. With

the other hand finish turning out the old sensor and quickly turn

in the new one. Careful though as to not cross thread it. If you

have to turn the new one in with force you may have it cross

threaded. Tighten the sensor till it is snug within the block or

head. Reconnect the wiring. Add coolant and reconnect battery.