Parts for your 1990 Mitsubishi Pajero-Heater core

Replacing or Maintaining the Heater Core in Your 1990 Mitsubishi Pajero

The 1990 Mitsubishi Pajero is a classic SUV that has been well-loved by off-road enthusiasts and everyday drivers alike. One component you might not immediately think about, but which plays a crucial role in your comfort during the colder months, is the heater core. Located within the vehicle's HVAC system, the heater core is responsible for warming the cabin by transferring heat from the engine's coolant into the passing air. So, if you notice that your Pajero isn't warming up quite as it should, it might be time to have a look at this vital component.

Replacing or maintaining the heater core is not typically a job for the faint-hearted, as it often requires disassembling parts of the dashboard to access the core itself. But whether you're handling it yourself or leaving it to the professionals, there are a few steps in this process and key considerations to keep in mind.

Recognising Heater Core Issues:

• Foggy Windows: If your windows frequently fog up when the heater is on, it might be due to a leak in the heater core, which allows coolant to evaporate inside the cabin.
• Sweet Smell: A distinct, syrupy scent inside the cabin is another sign of a leaking heater core, as it indicates the presence of coolant.
• Puddle of Coolant: Finding a puddle of coolant underneath the vehicle is often another indicator that your heater core may be malfunctioning.
• Inadequate Heating: If the cabin takes a long time to heat up, or doesn't heat up at all, it's worth checking the health of your heater core.

Maintenance and Replacement:

1. Before any work begins, ensure that the engine is completely cool to avoid burns from hot coolant, and safely drain the cooling system.
2. Disassemble the necessary parts of the dashboard to gain access to the heater core. This often involves removing panels and the glovebox.
3. Once you have access, disconnect the heater hoses and carefully remove the old heater core.
4. Install the new heater core by reversing the removal steps, ensuring all connections are tight to prevent leaks.
5. Refill the cooling system and test for leaks, ensuring proper ventilation to remove air pockets which can prevent the heater from functioning correctly.

Much like other parts of the vehicle, regular checks and maintenance are the keys to keeping the heater core - and by extension, your Pajero - running smoothly. Regularly inspecting the coolant level and the condition of relevant hoses can help you catch potential issues early, saving you from potential discomfort during those colder drives and possibly a costly repair bill. Whether you're taking a quick spin around town or heading off on an adventure, staying warm and comfortable should never be compromised.