I decided to replace the Pajero NW engine coolant temperature sensor to eliminate the possibility that the engine temperature coolant sensor was the cause of a coolant temperature fluctuation. The issued had started to occur in the Pajero after the Water Pump and Radiator had been replaced by NatRad. The coolant sensor I suspect would most likely not be the cause of the fluctuations as there was no issue before the replacement of the radiator.<\/p>\n
Note: This guide was written for my Mitsubishi Pajero NW with the 3.2 liter Diesel 4M4 engine. It should also be relevant for other Mitsubishi Pajero NW , NM , NS and NX Models with the Diesel 4M4 engine.<\/p>\n
The Pajero had at this point has done about 145k off-road travelling Kms and is 8 years old.<\/p>\n
I replaced the sensor while doing an engine coolant change so there was no coolant in the engine to be worried about. If you have not drained the engine coolant then drain the coolant first. If you do not wish to drain the coolant fully then remove the radiator cap before removing the sensor. Remember Engine Coolant is toxic and poisonous. Catch and dispose of any coolant correctly when removing the sensor. <\/p>\n
Engine coolant temperature sensor\u00a0 (Mitsubishi Part Number 1308A012 or aftermarket equivalent)
\nBlade Screw Driver
\n19mm Deep Socket
\nA Breaker Bar or Socket Wrench<\/p>\n
To gain easier access to the sensor the engine cover needs to be removed. This is a simple operation; undo the bolts holding the engine cover to the top of the engine and remove the cover.<\/p>\n\n\t\t