Ford Ecosport: Transmission Cooling - 6-Speed Automatic Transmission – 6F35 / Diagnosis and Testing - Transmission Cooling
Inspection and Verification
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Verify the customer concern.
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Visually inspect for obvious signs of mechanical or electrical damage.
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If an obvious cause for an observed or reported concern is
found, correct the cause (if possible) before proceeding to the next
step
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If the cause is not visually evident, verify the symptom and refer to the Symptom Chart.
Symptom Chart
Symptom Chart – Transmission Cooling
Symptom |
Possible Sources |
Action |
|
- Bent or crushed transmission fluid cooler tubes
|
- INSPECT the transmission fluid cooler tubes for damage. INSTALL new components as necessary.
|
|
- Clogged transmission fluid cooler or transmission fluid cooler tubes
|
- INSPECT the transmission fluid cooler and the transmission fluid cooler tubes for plugging. INSTALL new components as necessary.
|
|
- Cooler bypass valve stuck closed
|
- INSTALL a new cooler bypass valve.
REFER to: Cooler Bypass Valve (307-02B Transmission Cooling - 6-Speed Automatic Transmission – 6F35, Removal and Installation).
|
|
|
- INSPECT the transmission fluid cooler, the transmission
fluid cooler tubes and the cooler bypass valve for leaks. INSTALL new
components as necessary.
|
|
- Transmission fluid level overfull
|
-
REFER to: Transmission Fluid Level Check (307-01B Automatic
Transmission - 6-Speed Automatic Transmission – 6F35, General
Procedures).
|
|
- Internal transmission concerns
|
-
REFER to: Diagnosis By Symptom (307-01B Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Diagnosis and Testing).
|
- Vibration – a high frequency (20-80 Hz) that is felt through the seat or gear shifter. Changes with engine speed.
|
- Transmission fluid cooler tubes grounded
|
- CHECK the transmission fluid cooler tubes. REPAIR as necessary.
|
Check Transmission Fluid Level and Condition
NOTICE:
The vehicle should not be driven if the transmission fluid
is below the minimum transmission fluid level or internal failure could
result.
If
the vehicle has been operated for an extended period of time at highway
speeds, in city traffic, in hot weather or while pulling a trailer, the
transmission fluid may need to cool down to obtain an accurate reading.
The
transmission fluid level will differ depending on operating and ambient
temperatures. The correct reading should be within the normal operating
temperature range.
Transmission Fluid Level Check
To check the transmission fluid level,
REFER to: Transmission
Fluid Level Check (307-01B Automatic Transmission - 6-Speed Automatic
Transmission – 6F35, General Procedures).
High Transmission Fluid Level
A
transmission fluid level that is too high may cause the transmission
fluid to become aerated due to the churning action of the rotating
internal parts. This will cause erratic control pressure, foaming,
overheating, loss of transmission fluid from the vent tube and possible
transmission malfunction and/or damage.
Low Transmission Fluid Level
A
low transmission fluid level could result in poor transmission
engagement, slipping, malfunction and/or damage. This could also
indicate a leak in one of the transmission seals or gaskets.
Transmission Fluid Condition Check
-
Check the transmission fluid level.
REFER to: Transmission Fluid
Level Check (307-01B Automatic Transmission - 6-Speed Automatic
Transmission – 6F35, General Procedures).
-
Place a drop of transmission fluid on a facial tissue and examine the stain.
-
If evidence of solid material is found, the transmission fluid pan should be removed for further inspection.
-
If transmission fluid contamination or transmission failure
is confirmed by the sediment in the bottom of the transmission fluid
pan, repair the transmission and clean the transmission fluid cooler
tubes and the transmission fluid cooler.
-
If the transmission is to be overhauled or if installing a
new transmission, the transmission fluid cooler must be backflushed.
REFER
to: Transmission Fluid Cooler - Backflushing and Cleaning (307-02B
Transmission Cooling - 6-Speed Automatic Transmission – 6F35, General
Procedures).
This
vehicle is equipped with an external transmission fluid cooler. The
transmission fluid cooler is an oil-to-air fluid cooler which is mounted
in front of the radiator...
Special Tool(s) /
General Equipment
Transmission Cooling System Heated Flusher
Materials
Name
Specification
Motorcraft® MERCON® LV Automatic Transmission FluidXT-10-QLVC
WSS-M2C938-AMERCON® LV,
Flushing
NOTICE:
If the transmission plastic baffle melted due to an overheat
condition, install a new cooler...
Other information:
System Operation
System Diagram
Item
Description
1
Wiper/Washer Switch
2
Rain Sensor
3
Washer Motor
4
SCCM
5
Windshield Wiper Motor
6
GWM
7
BCM
8
IPC
9
PCM
10
BJB
11
Wiper Relay
12
BJB
13
Rear Window Washer Relay
14
Rear Wiper ..
Removal
NOTE:
Removal steps in this procedure may contain installation details.
Remove the steering column shrouds.
Refer to: Steering Column Shrouds (501-05 Interior Trim and Ornamentation, Removal and Installation).
NOTE:
Make sure that the component terminals are not bent or damaged.
Remove the RH steering column multifunction switch.
..