Ford Escape: Climate Control System - General Information / General Procedures - Refrigerant System Tests - 1.5L EcoBoost (132kW/180PS) – I3 (Y1)
Inspection
-
NOTE:
Procedure 1 — Ambient Temperature below 21 °C (70 °F).
NOTE:
Proper A/C system diagnosis on a vehicle’s
compressor is dependent on correct refrigerant system charge and tested
in ambient temperatures above 21°C (70°F). Perform the following steps
to achieve normal operating pressures.
Drive the vehicle or run the engine until it reaches normal operating temperature.
-
Set the A/C
system temperature to the highest possible temperature setting with the
dual function disabled (if equipped). Manually set the blower on HI. If
the vehicle has a fresh air/recirc button, set it to recirculation. If
the vehicle has an A/C switch or compressor on switch, set it to A/C OFF.
-
Close all the vehicle windows and doors.
-
Allow the vehicle to idle for 5 minutes.
-
Confirm the cabin temperature is above 24 °C (75 °F). Set the A/C switch or compressor on switch to MAX A/C ON.
-
Allow the vehicle to idle for 5 minutes.
-
Turn engine off and proceed to procedure 2 — ambient temperature between 21 °C (70 °F) and 38 °C (100 °F).
Inspection
NOTE:
Procedure 2— Ambient Temperature between 21°C (70°F) and 38°C (100°F)
-
Run the engine until it reaches normal operating temperature.
-
Connect the air conditioning service unit to the refrigerant system.
-
Set temperature to the lowest possible temperature
setting with the dual function disabled (if equipped). Manually set
blower on HI. If the vehicle has a fresh air/recirc button, set it to
FRESH. If the vehicle has an A/C switch or compressor on switch, set it to A/C ON.
-
Open all vehicle windows and leave the hood open for the test. Open the rear doors.
-
Confirm the compressor is operating and the engine
cooling fan(s) are operating or engaged. Allow the vehicle to idle until
the suction (low-side) and discharge (high-side) pressures are stable
or fluctuate in a range that repeats.
-
Record the ambient (shop) temperature.
-
Record the discharge pressure. If the pressure is fluctuating, record the average value.
-
Determine if the discharge pressure falls within the normal operating limits using the Normal Refrigerant Discharge Pressures 21 - 38° C (70 - 100° F) Ambient (30 - 60% Relative Humidity) chart below.
-
Record the suction pressure. If the pressure is fluctuating, record the average value.
-
Determine if the suction pressure falls within the normal operating limits using the Normal Refrigerant Suction Pressures 21 - 38° C (70 - 100° F) Ambient (30 - 60% Relative Humidity) chart below.
![](images/general_procedures_refrigerant_system_tests_1_5l_ecoboost_132kw_180ps_v_i3_y1_-2837/2296/imagen2_002_139(1).jpg) |
|
-
NOTE:
Use the following table to guide diagnosis of the
refrigerant system if operating pressures are outside normal limits.
Refer to the chart below.
High (Discharge) Pressure
|
Low (Suction) Pressure
|
Component — Causes
|
High
|
Normal to High
|
-
Condenser — inadequate airflow.
-
Engine — overheating.
|
Normal to High
|
Normal
|
-
Refrigerant overcharge — air in refrigerant.
|
Normal to Low
|
High
|
-
A/C Compressor — low performance.
|
Normal to Low
|
Normal to High
|
-
A/C suction line — partially restricted or plugged. a
|
Normal to Low
|
Low
|
-
Low refrigerant charge — leak in system.
-
A/C suction line — partially restricted or plugged. b
-
TXV - restricted
|
Erratic Operation or Compressor Not Running
|
-
Ambient Air Temperature (AAT) sensor — poor connection.
-
A/C pressure transducer — poor connection.
-
Evaporator temperature sensor — poor connection.
-
Low refrigerant charge — leak in system.
|
Additional Possible Components or Causes Associated With Inadequate Compressor Operation
|
-
Compressor drive belt — loose
-
Compressor clutch — slipping
-
Clutch coil open — shorted, or loose mounting
-
Control assembly switch — dirty contacts or sticking open
-
Clutch wiring circuit — high resistance, open or blown fuse
-
Compressor operation interrupted by engine computer
|
Additional Possible Components or Causes Associated With a Damaged Compressor
|
-
Incorrect clutch air-gap
-
Suction accumulator — refrigerant oil bleed hose plugged
-
Refrigerant leaks
|
a Low pressure reading will be normal to high if restriction is downstream of service access valve.
b Low pressure reading will be low if restriction is upstream of service access valve.
Inspection
NOTE:
Procedure 3— Ambient Temperature between 21 °C (70 °F) and 38 °C (100 °F)
-
Run the engine until it reaches normal operating temperature.
-
Connect the air conditioning service unit to the refrigerant system.
-
Set temperature to the lowest possible temperature
setting with the dual function disabled (if equipped). Manually set
blower on HI. If the vehicle has a fresh air/recirc button, set it to
FRESH. If the vehicle has an A/C switch or compressor on switch, set it to A/C ON.
-
Open all vehicle windows and leave the hood open for the
test. Open the rear hatch and/or rear doors (if equipped).
-
Confirm the compressor is operating and the engine
cooling fan(s) are operating or engaged. Allow the vehicle to idle until
the suction (low-side) and discharge (high-side) pressures are stable
or fluctuate in a range that repeats.
-
Record the ambient (shop) temperature.
-
Record the discharge pressure. If the pressure is fluctuating, record the average value.
-
Determine if the discharge pressure falls within the normal operating limits using the Normal Refrigerant Discharge Pressures 38 - 49° C (100 - 120° F) Ambient (15 - 40% Relative Humidity) chart below.
-
Record the suction pressure. If the pressure is fluctuating, record the average value.
-
Determine if the suction pressure falls within the normal operating limits using the Normal Refrigerant Suction Pressures 38 - 49° C (100 - 120° F) Ambient (15 - 40% Relative Humidity) chart below.
![](images/general_procedures_refrigerant_system_tests_1_5l_ecoboost_132kw_180ps_v_i3_y1_-2837/2296/imagen2_004_092(1).jpg) |
|
-
NOTE:
Use the following table to guide diagnosis of the
refrigerant system if operating pressures are outside normal limits.
NOTE:
Proper A/C system diagnosis on vehicles with
Variable compressors is dependent on correct refrigerant system charge
and tested in ambient temperatures above 21°C (70°F). Never replace a
Variable compressor without first recovering and recharging the A/C
system to vehicle specification and retesting in ambient temperatures
above 21°C (70°F).
Refer to the chart below.
High (Discharge) Pressure
|
Low (Suction) Pressure
|
Component — Causes
|
High
|
Normal to High
|
-
Condenser — inadequate airflow.
-
Engine — overheating.
|
Normal to High
|
Normal
|
-
Refrigerant overcharge — air in refrigerant.
|
Normal to Low
|
High
|
-
A/C Compressor — low performance.
|
Normal to Low
|
Normal to High
|
-
A/C suction line — partially restricted or plugged. a
|
Normal to Low
|
Low
|
-
Low refrigerant charge — leak in system.
-
A/C suction line — partially restricted or plugged. b
-
TXV - restricted
|
Erratic Operation or Compressor Not Running
|
-
Ambient Air Temperature (AAT) sensor — poor connection.
-
A/C pressure transducer — poor connection.
-
Evaporator temperature sensor — poor connection.
-
Low refrigerant charge — leak in system.
|
Additional Possible Components or Causes Associated With Inadequate Compressor Operation
|
-
Compressor drive belt — loose
-
Compressor clutch — slipping
-
Clutch coil open — shorted, or loose mounting
-
Control assembly switch — dirty contacts or sticking open
-
Clutch wiring circuit — high resistance, open or blown fuse
-
Compressor operation interrupted by engine computer
|
Additional Possible Components or Causes Associated With a Damaged Compressor
|
-
Incorrect clutch air-gap
-
Suction accumulator — refrigerant oil bleed hose plugged
-
Refrigerant leaks
|
a Low pressure reading will be normal to high if restriction is downstream of service access valve.
b Low pressure reading will be low if restriction is upstream of service access valve.
Special Tool(s) /
General Equipment
Air Conditioning Service Unit
Check
NOTICE:
Motorcraft® R-1234yf Refrigerant POE Oil (YN-34) only must
be used as a refrigerant system lubricant for High Voltage Battery
Electric vehicles...
Inspection
NOTE:
Procedure 1 — Ambient Temperature below 21 °C (70 °F).
NOTE:
Proper A/C system diagnosis on a vehicle’s
compressor is dependent on correct refrigerant system charge and tested
in ambient temperatures above 21°C (70°F)...
Other information:
Removal
WARNING:
To prevent the risk of high-voltage shock, always follow
precisely all warnings and service instructions, including instructions
to depower the system. The high-voltage system utilizes approximately
450 volts DC, provided through high-voltage cables to its components and
modules...
Removal
WARNING:
The following procedure prescribes critical repair steps
required for correct restraint system operation during a crash. Follow
all notes and steps carefully. Failure to follow step instructions may
result in incorrect operation of the restraint system and increases the
risk of serious personal injury or death in a crash...
Categories
What Is the Master Access Code
The master access code is a factory-set
five-digit entry code. You can operate the
keypad with the master access code at
any time. The master access code is on the
owner’s wallet card in the glove box and
is available from an authorized dealer.
Displaying the Master Access Code
To display the factory-set code in the
information display:
![Ford Escape. Master Access Code](images/books/1812/ford_escape_master_access_code_138.jpg)
Remove the rubber mat.
Insert the first programmed key in the
backup slot.
Press the push button ignition switch
once and wait a few seconds.
Press the push button ignition switch
again and remove the key.
Within 10 seconds, place a second
programmed intelligent access key in
the backup slot and press the push
button ignition switch.
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