Kia Optima: Evaporative Emission Control System / Fuel Filler Cap

Kia Optima DL3 2019-2021 Service and Repair Manual / Emission Control System / Evaporative Emission Control System / Fuel Filler Cap

Description and operation

Description

A ratchet tightening device on the threaded fuel filler cap reduces the chances of incorrect installation, which would seal the fuel filler. After the gasket on the fuel filler cap and the filler neck flange contact each other, the ratchet produces a loud clicking noise indicating the seal has been set.

Canister

Repair procedures Removal 1. Disconnect the negative (-) battery cable. 2. Remove the stabilizer bar bushing (A). Tightening ...

Fuel Tank Air Filter

Repair procedures Removal 1. Disconnect the negative battery (-) terminal. 2. Remove the [LH] rear wheel guard. (Refer to Body - "Rear Whee ...

Other information:

Kia Optima DL3 2019-2021 Owner's Manual: Hill-start assist control (HAC)

A vehicle has the tendency to roll back on a steep hill when it starts to go after stopping. The Hill-start Assist Control (HAC) prevents the vehicle from rolling back by applying the brakes automatically for about 2 seconds. The brakes are released when the accelerator pedal is depressed or a ...

Kia Optima DL3 2019-2021 Owner's Manual: Tire pressure

Always observe the following: Check tire pressure when the tires are cold. (After vehicle has been parked for at least three hours or hasn't been driven more than 1.6 km (1 mile) since startup.) Check the pressure of your spare tire each time you check the pressure of other tires. N ...