Kia Optima: ATF Warmer Description and Operation
| Description |
The ATF warmer is mounted on the valve body cover to reduce
oil viscosity friction by increasing oil temperature under cold
condition, which in turn improves fuel efficiency. It is serial mounted
on the entry of the Electronic Throttle Controller (ETC), as shown in
the diagram, and minimizes the effects of cabin heating system.
| – |
Engine coolant is used for circulating heat in order to heat and cool the transaxle oil. |
| – |
Rapidly elevates the transaxle oil temperature during the initial cold start of the engine. |
| – |
Prevents over heating of the transaxle oil while the vehicle is moving. |
| – |
Transaxle oil warm-up and cooling can be done with a single system. |
| – |
The water coolant and oil are separate in order to exchange heat.
Coolant Flow
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Valve Body Repair procedures
Removal
•
Be sure to read and follow the “General Safety Information
and Caution” before doing any work related with the high voltage
system. Failure ...
ATF Warmer Repair procedures
Removal
1.
Remove the under cover (A).
Tightening torque :
7.8 ~ 11.8N.m (0.8 ~ 1.2kgf.m, 5.8 ~ 8.7 lb-ft)
2.
Drain the coolant of engine & transaxle cooling system.
(Refer to Engi ...
See also:
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Glass antenna
When the radio power switch is turned on while the ignition switch is in either
the ON or ACC position, your car will receive both AM and FM broadcast signals
through the antenna in the rear ...
ETC (Electronic Throttle Control) System Description and Operation
Description
The Electronic Throttle Control (ETC) System consists of a
throttle body with an integrated control motor and throttle position
sensor (TPS). Instead of the traditional throttle cab ...
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