Kia Optima: Change to "winter weight" oil if
necessary
In some climates it is recommended that a lower viscosity "winter weight" oil be used during cold weather. See section 8 for recommendations. If you aren't sure what weight oil you should use, consult an authorized Kia dealer.
Check battery and cables
Winter puts additional burdens on the
battery system. Visually inspect the battery
and cables as described in section
7. The level of charge in your battery can
be checked by an authorized Kia ...
Check spark plugs and ignition
system
Inspect your spark plugs as described in
section 7 and replace them if necessary.
Also check all ignition wiring and components
to be sure they are not cracked,
worn or damaged in any way. ...
See also:
Injector. Description and Operation
Description
Based on information from various sensors, the ECM can calculate
the fuel amount to be injected. The fuel injector is a solenoid-operated valve
and the fuel injection amount is cont ...
Heater & A/C Control Unit(Manual). Repair procedures
Replacement
1.
Disconnect the negative (-) battery
terminal.
2.
Using the screwdriver, remove
the side cover (A).
3.
Loosen the mounting scre ...
Components and Components Location
Components
...