Ford Fusion: Climate Control System - General Information / Heater Core Leak Check - Vehicles With: R1234YF Refrigerant. General Procedures
Inspection
-
NOTE:
A coolant leak in the heater hose could follow the
heater core tube to the heater core and appear as a leak in the heater
core.
Inspect for evidence of coolant leakage at the heater hose to heater core attachments.
-
NOTE:
Spring-type clamps are installed as original
equipment. Installation and overtightening of nonspecified clamps can
cause leakage at the heater hose connection and damage the heater core.
Check the integrity of the heater hose clamps.
-
Drain the coolant from the cooling system. Refer to
Cooling System Draining, Filling, and Bleeding procedure in Group 303.
-
Disconnect the heater hoses from the heater core.
-
Install a short piece of heater hose, approximately 101 mm (4 in) long on each heater core tube.
-
Fill the heater core and heater hoses with water and
install the plug (221373) and the adapter (221374) from the Pressure
Test Kit. Secure the heater hoses, plug and adapter with hose clamps.
-
Attach the pump and gauge assembly from the Pressure Test Kit to the adapter.
-
014-R1072 Radiator Pressure Test Set
-
Close the bleed valve at the base of the gauge. Pump 138 kPa (20 psi) of air pressure into the heater core.
-
Observe the pressure gauge for a minimum of 3 minutes.
-
If the pressure drops, check the heater hose connections
to the heater core tubes for leaks. If the heater hoses do not leak,
replace the heater core.
Special Tool(s) /
General Equipment
UV Leak Detector
Electronic Leak Detector
Leak detection
Vehicles with air conditioning
Review next note for important refrigerant system dye information...
Special Tool(s) /
General Equipment
Refrigerant Identification Equipment
Activation
NOTE:
Use Refrigerant Identification Equipment to identify
gas samples taken directly from the refrigeration system or storage
containers prior to recovering or charging the refrigerant system...
Other information:
System Operation
System Diagram - Memory Seat
Item
Description
1
Memory Power Seat Motors
2
HS1-CAN
3
PCM
4
BCM
5
HS1-CAN
6
Ignition Switch
7
GWM
8
Memory SET Switch
9
Driver Seat Control Switch
10
MS-CAN
11
DSM
12
MS-CAN
13
DDM
14
Position Sensors
15
Motors
Network Message C..
Special Tool(s) /
General Equipment
Flat-Bladed Screwdriver
Removal
NOTE:
Removal steps in this procedure may contain installation details.
Open the luggage compartment lid.
Position aside the luggage compartment lid pull handle cover.
Remove the trim cover.
Remove the screws and the luggage compartment pull han..