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 CONDITIONINGCOMPRESSOR HVACSERVICE AND REPAIR
2004 Mitsubishi Lancer L4-2.4L SOHC
Compressor HVAC: Service and Repair
2004 Mitsubishi Lancer L4-2.4L SOHCSECTION Service and Repair
Compressor Assembly And Tension Pulley
REMOVAL AND INSTALLATION
REMOVAL SERVICE POINTS
<> FLEXIBLE SUCTION HOSE AND FLEXIBLE DISCHARGE HOSE DISCONNECTION
CAUTION: As the compressor oil and receiver are highly moisture absorbent, use a non-porous material to plug the hose and nipples.
To prevent the entry of dust or other foreign bodies, plug the dismantled hoses and compressor nipples.
<> DRIVE BELT REMOVAL
1. Loosen the bolt securing the drive belt.
2. Loosen the adjusting bolt and remove the drive belt.
<> COMPRESSOR REMOVAL
Take care not to spill any compressor oil when removing the compressor.
INSTALLATION SERVICE POINT
>>A<< COMPRESSOR INSTALLATION
If a new compressor is installed, first adjust the amount of oil according to the procedures described, and then install the compressor.
1. Measure the amount [X cu.cm (X fl.oz.)] of oil within the removed compressor.
2. Drain (from the new compressor) the amount [Y cu.cm (Y fl.oz.)] of oil calculated according to the following formula, and then install the new compressor.
New compressor oil amount=140 cu.cm (4.7fl.oz)
140 cu.cm - X cu.cm = Y cu.cm (4.7 fl.oz. - X fl.oz. = Y fl.oz.)
NOTE: Y cu.cm (Y fl.oz.) indicates the amount of oil in the refrigerant line, the condenser, the evaporator, etc.
NOTE: When replacing the following parts at the same times as the compressor, subtract the rated oil amount of the each part from Y cu.cm (Y fl.oz.) and discharge from the new compressor.
Quantity:
- Evaporator: 60 cu.cm (2.0 fl.oz.)
- Condenser: 15 cu.cm (0.5 fl.oz.)
- Suction hose: 10 cu.cm (0.3 fl.oz.)
- Receiver: 10 cu.cm (0.3 fl.oz.)
Compressor Assembly And Tension Pulley:
REMOVAL AND INSTALLATION
REMOVAL SERVICE POINTS
<> FLEXIBLE SUCTION HOSE AND FLEXIBLE DISCHARGE HOSE DISCONNECTION
CAUTION: As the compressor oil and receiver are highly moisture absorbent, use a non-porous material to plug the hose and nipples.
To prevent the entry of dust or other foreign bodies, plug the dismantled hoses and compressor nipples.
<> DRIVE BELT REMOVAL
1. Loosen the bolt securing the drive belt.
2. Loosen the adjusting bolt and remove the drive belt.
<
Take care not to spill any compressor oil when removing the compressor.
INSTALLATION SERVICE POINT
>>A<< COMPRESSOR INSTALLATION
If a new compressor is installed, first adjust the amount of oil according to the procedures described, and then install the compressor.
1. Measure the amount [X cu.cm (X fl.oz.)] of oil within the removed compressor.
2. Drain (from the new compressor) the amount [Y cu.cm (Y fl.oz.)] of oil calculated according to the following formula, and then install the new compressor.
New compressor oil amount=140 cu.cm (4.7fl.oz)
140 cu.cm - X cu.cm = Y cu.cm (4.7 fl.oz. - X fl.oz. = Y fl.oz.)
NOTE: Y cu.cm (Y fl.oz.) indicates the amount of oil in the refrigerant line, the condenser, the evaporator, etc.
NOTE: When replacing the following parts at the same times as the compressor, subtract the rated oil amount of the each part from Y cu.cm (Y fl.oz.) and discharge from the new compressor.
Quantity:
- Evaporator: 60 cu.cm (2.0 fl.oz.)
- Condenser: 15 cu.cm (0.5 fl.oz.)
- Suction hose: 10 cu.cm (0.3 fl.oz.)
- Receiver: 10 cu.cm (0.3 fl.oz.)
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.