Parts for your 1995 Mitsubishi Pajero-Temperature sensors

1995 Mitsubishi Pajero Temperature Sensors

Temperature sensors are absolutely used on the 1995 Mitsubishi Pajero. Technical references including the Mitsubishi Pajero V20 Series Factory Service Manual (1991–1999, Engine, Cooling, and Electrical sections), the Mitsubishi ASA/CAPS electronic parts catalogue for V20 models, and aftermarket guides such as the Haynes Mitsubishi Pajero/Montero 1983–1997 and Autodata service data all document multiple temperature sensors fitted to these vehicles. Depending on engine and trim, the Pajero runs an engine coolant temperature (ECT) sensor for the ECU, a separate temperature sender for the dash gauge, and often an intake air temperature sensor. Diesel 4M40 variants also use coolant temperature input for glow plug and warm-up control.

On this era Pajero, the ECT sensor is a key input for fuelling, ignition timing, cold-start enrichment, radiator fan logic, and overheat strategies. The dash gauge uses a separate sender so the needle reads consistently for the driver. Diesel models use temperature sensing to time pre-heat and post-heat, cut fast-idle as the engine warms, and help avoid over-fuelling when cold. If any of these sensors go off-song, the vehicle can chew through fuel, idle rough, run the fans at the wrong time, or throw fault codes via the ECU.

There’s no fixed replacement interval for temperature sensors, they’re usually replaced on condition. As part of regular servicing, it’s smart to check for green crust on plugs, brittle connectors, and coolant leaks around the sensor bodies. A quick resistance test against the values in the factory manual will confirm health. Keep the cooling system clean with the correct spec coolant, contamination and corrosion are common sensor killers. When replacing, fit quality parts, avoid thread tape unless specified (some sensors need a clean metal earth path), and torque to spec from the workshop manual.

• Common clues they’re tired: hard cold starts, rich running or poor economy, lazy warm-up, erratic temp gauge, radiator fans stuck on/off, or ECU fault codes related to coolant temperature.
• Typical locations: 6G72 petrol – ECT sensor at the thermostat housing/intake, dash sender nearby. 4M40 diesel – ECT in the cylinder head near the thermostat, separate single-pin sender for the gauge.
• Replacement tips: let the engine cool, relieve pressure, drain a little coolant, swap the sensor, top up and bleed the system, then check for leaks and clear any stored codes.

Where is the coolant temperature sensor on a 1995 Pajero?

On most 6G72 petrol models it’s threaded into the thermostat housing or intake crossover, with a separate single-pin sender for the dash close by. On 4M40 diesels it’s typically screwed into the cylinder head near the thermostat outlet, again with a separate sender for the gauge. Access is under the bonnet on the front/upper side of the engine, remove intake ducting if needed.

What symptoms point to a bad temperature sensor on this model?

Expect hard cold starts, over-rich running, poor fuel economy, rough idle after warm-up, cooling fans cycling oddly, or an untrustworthy dash gauge. The ECU may store a coolant temperature fault and default to a limp strategy that fattens fuelling. A quick live-data check (where available) or resistance test against the factory chart will confirm it.

Do petrol and diesel 1995 Pajeros use the same sensor?

Not necessarily. While both use an ECU coolant temperature sensor and a separate gauge sender, the thread, connector, and calibration can differ between 6G72 petrol and 4M40 diesel variants. Always match by VIN/engine code using the Mitsubishi parts catalogue or the factory service manual before ordering.