radiator cap ACURA CSX 2006 Service Owner's Manual

SymptomDiagnostic procedure Also check for
21-18Climate Control
Symptom Troubleshooting Index (cont’d)





 


 


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Warm air comes out of
the vents, and there is
frost on the expansion
valve
Probable cause: The expansion valve is stuck
closed
Replace the expansion valve (see page 21-80)
HVAC DTCs (see page 21-9)
Check the old expansion valve
for contamination. If
contaminants are found,
replace the A/C system
component that caused the
contamination
The temperature of the
liquid line is the same
on both sides of the
expansion valve, and
the evaporator coil or
suction line has heavy
condensation Probable cause: The expansion valve is stuck
open
Replace the expansion valve (see page 21-80)
HVAC DTCs (see page 21-9)
Check the old expansion valve
for contamination. If
contaminants are found,
replace the A/C system
component that caused the
contamination
Warm air comes out of
the vents, but
operation is normal
otherwise Probable cause: Compressor failure
Do the A/C system test (see page 21-99), and
correct any problems. If necessary, replace the
compressor (see page 21-83) HVAC DTCs (see page 21-9)
Add refrigerant oil depending
on the part you replaced
(see page 21-7)
Driver’s and
passenger’s side vent
temperatures vary by
more than 11 °C (20 °F) Probable causes: The recirculation control door
or the air mix door is malfunctioning
Do the following troubleshooting:
Recirculation control motor test (see page
21-74)
Air mix control motor test (see page 21-72) HVAC DTCs (see page 21-9)
Poor or loose connections at the
terminals
Insufficient heating 1. 2.
3.
4.
5.
6.
7.Check the coolant level (see page 10-7)
Check the radiator cap (see page 10-4)
Check the coolant temperature during normal
operation
Check the heater core inlet hose temperature:
If it is COLD, check for restrictions in the hose,
a damaged or leaking thermostat, or a
damaged or leaking water pump
If it is HOT, check for restrictions in the
heater core. Back flush or replace the heater
core
Do the air mix control motor test (see page
21-72)
Check the blower motor unit for obstructions
Check for air leaks around the ducts and vents HVAC DTCs (see page 21-9)
Damaged cylinder head gasket
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21-84Climate Control
A/C Compressor Replacement (cont’d)
8x1.25mm
22 N·m
(2.2 kgf·m, 16 lbf·ft)
A
7. Remove the mounting bolts and the A/C
compressor (A). Be careful not to damage the
radiator fins when removing the A/C compressor. 8. Install the compressor in the reverse order of
removal, and note these items:
 Inspect the A/C lines for any signs of contamination.
 If you’re installing a new A/C compressor, you must calculate the amount of refrigerant oil to be
removed from it (see page 21-7). A new A/C
compressor comes with a full charge of oil.
 Replace the O-rings with new ones at each fitting, and apply a thin coat of refrigerant oil before
installing them. Be sure to use the correct O-rings
for HFC-134a (R-134a) to avoid leakage.
 Use refrigerant oil (SP-10) for HFC-134a SANDEN spiral type A/C compressor only.
 To avoid contamination, do not return the oil to the container once dispensed, and never mix it
with other refrigerant oils.
 Immediately after using the oil, reinstall the cap on the container, and seal it to avoid moisture
absorption.
 Do not spill the refrigerant oil on the vehicle; it may damage the paint; if the refrigerant oil
contacts the paint, wash it off immediately.
 Charge the system (see page 21-92).
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21-8921-89
Receiver/Dryer Desiccant
Replacement
A 6x1.0mm
9.8 N·m
(1.0 kgf·m, 7.2 lbf·ft)
6x1.0mm
9.8 N·m
(1.0 kgf·m, 7.2 lbf·ft) A
B
C
8. Remove the A/C condenser (A) by lifting it up. Be careful not to damage the radiator and A/C
condenser fins when removing the A/C condenser.
9. Install the A/C condenser in the r everse order of
removal, and note these items:
 If you’re installing a new A/C condenser, add refrigerant oil (SP-10) (see page 21-7).
 Replace the O-rings with new ones at each fitting, and apply a thin coat of refrigerant oil before
installing them. Be sure to use the correct O-rings
for HFC-134a (R-134a) to avoid leakage.
 Immediately after using the oil, reinstall the cap on the container, and seal it to avoid moisture
absorption.
 Do not spill the refrigerant oil on the vehicle; it may damage the paint; if the refrigerant oil
contacts the paint, wash it off immediately.
 Charge the system (see page 21-92).
 Adjust the hood latch (see page 20-152). NOTE: Install the receiver/dryer as quickly as possible
to prevent the system from absorbing moisture from
the air.
1. Remove the A/C condenser (see page 21-88).
2. Remove the bolts from the A/C condenser, then remove the receiver/dryer (A), the bracket (B), and
the O-rings (C).
3. Install the receiver/dryer in the reverse order of removal. Replace the O-rings with new ones, and
apply a thin coat of refrigerant oil (SP-10) before
installing them. Be sure to use the correct O-rings
for HFC-134a (R-134a) to avoid leakage.
08/08/21 14:43:49 61SNR030_210_0090
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21-8921-89
Receiver/Dryer Desiccant
Replacement
A 6x1.0mm
9.8 N·m
(1.0 kgf·m, 7.2 lbf·ft)
6x1.0mm
9.8 N·m
(1.0 kgf·m, 7.2 lbf·ft) A
B
C
8. Remove the A/C condenser (A) by lifting it up. Be careful not to damage the radiator and A/C
condenser fins when removing the A/C condenser.
9. Install the A/C condenser in the r everse order of
removal, and note these items:
 If you’re installing a new A/C condenser, add refrigerant oil (SP-10) (see page 21-7).
 Replace the O-rings with new ones at each fitting, and apply a thin coat of refrigerant oil before
installing them. Be sure to use the correct O-rings
for HFC-134a (R-134a) to avoid leakage.
 Immediately after using the oil, reinstall the cap on the container, and seal it to avoid moisture
absorption.
 Do not spill the refrigerant oil on the vehicle; it may damage the paint; if the refrigerant oil
contacts the paint, wash it off immediately.
 Charge the system (see page 21-92).
 Adjust the hood latch (see page 20-152). NOTE: Install the receiver/dryer as quickly as possible
to prevent the system from absorbing moisture from
the air.
1. Remove the A/C condenser (see page 21-88).
2. Remove the bolts from the A/C condenser, then remove the receiver/dryer (A), the bracket (B), and
the O-rings (C).
3. Install the receiver/dryer in the reverse order of removal. Replace the O-rings with new ones, and
apply a thin coat of refrigerant oil (SP-10) before
installing them. Be sure to use the correct O-rings
for HFC-134a (R-134a) to avoid leakage.
08/08/21 14:43:49 61SNR030_210_0090
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DYNOMITE -2009-