Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSMITSUBISHI2004LANCER L4-2.4L SOHCREPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGHEATER CORESERVICE AND REPAIR
2004 Mitsubishi Lancer L4-2.4L SOHC
Heater Core: Service and Repair
2004 Mitsubishi Lancer L4-2.4L SOHCSECTION Service and Repair
HEATER UNIT, HEATER CORE, BLOWER ASSEMBLY AND EVAPORATOR UNIT
REMOVAL SERVICE POINT
<> FLEXIBLE SUCTION HOSE AND LIQUID PIPE B DISCONNECTION
CAUTION: As the compressor oil and receiver are highly moisture absorbent, use a non-porous material to hose and nipples.
To prevent the entry of dust or other foreign bodies, plug the dismantled hose and the nipples of the expansion valves.
HEATER UNIT / Removal And Installation:
HEATER UNIT / Disassembly And Assembly:
REMOVAL SERVICE POINT
<> FLEXIBLE SUCTION HOSE AND LIQUID PIPE B DISCONNECTION
CAUTION: As the compressor oil and receiver are highly moisture absorbent, use a non-porous material to hose and nipples.
To prevent the entry of dust or other foreign bodies, plug the dismantled hose and the nipples of the expansion valves.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.