Mazda 6 2002 - Page 1113

BASIC SYSTEM
U23
U
HEATER CORE INSPECTION
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1. Remove the A/C unit. (See U15 A/C UNIT REMOVAL/INSTALLATION.)
2. Remove the heater core from the A/C unit.
3. Inspect for cracks, damage, and coolant leakage.
• If any problems are found, replace the heater core.
4. Inspect for bent fins.
• If any are bent, use a flathead screwdriver to straighten them.
5. Verify that the heater core inlet and outlet pipe are not distorted or damaged.
• Repair with pliers if necessary.
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REAR HEAT DUCT REMOVAL/INSTALLATION
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1. Turn over the front floor covering. (See S99 FRONT FLOOR COVERING REMOVAL/INSTALLATION.)
2. Remove in the order indicated in the table.
.
3. Install in the reverse order of removal.
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A/C COMPRESSOR REMOVAL/INSTALLATION
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1. Disconnect the negative battery cable.
2. Discharge the refrigerant from the system. (See U9 RECOVERY.) (See U9 CHARGING.)
3. Remove the right side splash shield and mudguard (L.H.D. only).
4. Loosen the drive belt and remove it.
Caution
•
••
• If moisture or foreign material enters the refrigeration cycle, cooling ability will be lowered and
abnormal noise will occur. Always immediately plug open fittings after removing any refrigeration
cycle parts to keep moisture or foreign material out of the cycle.
5. Remove in the order indicated in the table. Do not
allow compressor oil to spill.
.
6. Install in the reverse order of removal.
7. Adjust the drive belt.
8. Perform the refrigerant system performance test.
(See U13 REFRIGERANT SYSTEM
PERFORMANCE TEST.)
1 Rear heat duct (Right)
2 Rear heat duct (Left)
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1 Cooler hose (HI)
(See U29 Refrigerant Lines Installation Note)
2 Cooler pipe No.4 (L.H.D.) or cooler hose (LO)
(R.H.D.)
(See U29 Refrigerant Lines Installation Note)
3 Magnetic clutch connector
4 A/C compressor
(See U24 A/C Compressor Installation Note)
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