Page 2372 of 3870

ADJUSTMENT 1. Select a quiet area for testing. Duplicate conditions as much as possible.
Switch the compressor on and off several times to clearly identify compressor
noise. To duplicate high ambient conditions (high head pressure), restrict air
flow through the condenser. Install a manifold gauge set to make sure
discharge pressure doesn't exceed 2,070 kPa (300.2 psi).
2. Tighten all compressor mounting bolts, clutch mounting bolt, and compressor
drive belt. Check to assure clutch coil is tight (no rotation or wobble).
3. Check refrigerant hoses for rubbing or interference that can cause unusual
noises.
4. Check refrigerant charge. (Refer to
CHARGING
and
DISCHARGING
).
5. Recheck compressor noise as in Step 1 .
6. If noise still exists, loosen compressor mounting bolts and retighten. Repeat
Step 1 .
7. If noise continues, replace compressor and repeat from Step 1 .
POWER RELAY CHECK FRONT BLOWER RELAY CONTINUITY CHECK
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor
Page 2381 of 3870
Fig. 281: Removing And Installing Heater Uni
t
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
REMOVAL SERVICE POINTS << A >> SUCTION PIPE AND LIQUID PIPE DISCONNECTION To prevent the entry of dust or other foreign bodies, plug the dismantled hose and
the nipples of the expansion valves. Fig. 282: Identifying Connectors
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.CAUTION: As the compressor oil and receiver are highly
moisture absorbent, use a non-porous material to
plug the hose and nipples.
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor
Page 2399 of 3870

To prevent the entry of dust or other foreign bodies, plug the dismantled hoses and
compressor nipples. << B >> 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 below, and then install the compressor.
1. Measure the amount [X cm
3 (X fl.oz) of oil within the removed compressor.
2. Drain (from the new compressor) the amount of oil calculated according to the
following formula, and then install the new compressor.
New compressor oil amount = 140cm
2 (4.7 fl.oz)
140 cm
3 - X cm
3 = Y cm
3 (4.7 fl.oz. - X fl.oz. = Y fl.oz)
Quantity:
Eva
porator
: 60 c
m3 (2.0 fl.oz
)
CAUTION: As the compressor oil and receiver are highly
moisture absorbent, use a non-porous material to
plug the hose and nipples.
NOTE:
Y cm
3 (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 each part from
Y cm3 (Y fl.oz) and discharge from the new compressor.
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor
Page 2405 of 3870
Fig. 303: Adjusting Air Gap
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
INSPECTION COOLING TEMPERATURE SWITCH 1. Dip the metal part of the cooling temperature switch into engine oil and
increase the oil temperature using a gas burner or similar.
CAUTION: Do not heat more than necessary.
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor
Page 2406 of 3870
Fig. 304: Inspecting Cooling Temperature Switch
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
2. When the oil temperature reaches the standard value, check that voltage is
supplied between the terminals.
Standard value:
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor
Page 2407 of 3870
Fig. 305: Oil Temperature Continuity Char
t
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Fig. 306: Oil Temperature Continuity Graph
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
CONDENSER AND CONDENSER FAN MOTOR REMOVAL AND INSTALLATION Pre-removal and Post-installation Operation
Refrigerant Draining and Refilling (Refer to
CHARGING
and
DISCHARGING
.)
Air Duct Removal and Installation
(Refer to
REMOVAL AND
NOTE: When the oil temperature is 155°C (311°F) or m ore and
there is no continuity, the resistance will not be 2ohm
or lower until the oil temperature reduces to 125°C (257°
F) or less.
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor
Page 2409 of 3870
REMOVAL SERVICE POINTS << A >> RESERVE TANK ASSEMBLY REMOVAL Position the reserve tank assembly out of the way. The reserve tank assembly
cannot be removed completely from the engine compartment. Fig. 308: Identifying Reserve Tank Assembly And Air Cleaner Body
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
<< B >> FLEXIBLE SUCTION HOSE AND LIQUID PIPE A DISCONNECTION NOTE: For removal and installation of the condenser fan motor,
refer to REMOVAL AND INSTALLATION
.
CAUTION: As the compressor oil and receiver are highly
moisture absorbent, use a non-porous material to
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor
Page 2410 of 3870
To prevent the entry of dust or other foreign bodies, plug the dismantled hose and
condenser assembly nipples. INSTALLATION SERVICE POINT >> A << CONDENSER INSTALLATION When replacing the condenser, refill it with a specified amount of compressor oil
and install it to the vehicle.
Compressor oil: SUN PAG 56
Quantity:
15 cm
3 (0.5 fl.oz)
INSPECTION CONDENSER FAN MOTOR CHECK Check to be sure that the condenser fan motor operates when battery voltage is
applied to terminal 2 and terminal 1
grounded.
plug the hose and nipples.
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor