Kia Optima Hybrid: Fuel Delivery System / Fuel Tank Repair procedures

Removal
1.
Release the residual pressure in fuel line (Refer to “Release Residual Pressure in Fuel Line”).
2.
Lift the vehicle.
3.
Remove the front side cover (A) and rear side cover (B).

4.
Disconnect the fuel feed tube hose (A), leveling hose (B) and vapor hose quick-connector C).

5.
Remove rear muffler (Refer to Engine Mechanical System – “Muffler”).
6.
Disconnect the fuel pump & fuel tank pressure sensor extension connector (A).

7.
After supporting the fuel tank with a jack, remove the fuel tank band (A).

8.
Disconnect the fuel feed tube quick-connector (A).

9.
Remove the fuel tank.
Installation
1.
Install in the reverse order of removal.

Fuel tank band installation nut:
39.2 ~ 54.0 N.m (4.0 ~ 5.5 kgf.m, 28.9 ~ 39.8 lb-ft)

Repair procedures

Fuel Pressure Test 1. Release the residual pressure in fuel line (Refer to “Release Residual Pressure in Fuel Line” in this group).     When removing the fuel pump relay, a Diagnostic Trouble ...

Fuel Line Repair procedures

Removal 1. Remove the fuel tank (Refer to “Fuel Tank”) 2. Disconnect the fuel feed tube (A). 3. Disconnect the vapor hose (A). 4. Disconnect the vapor hose quick-connector (A). 5. Remove the fuel tube ...

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Description and Operation


Description Tread Lamp – Tire Under Inflation / Leak Warning. 1. Turn on condition • When tire pressure is below allowed threshold • When rapid leak is detected by the sensor. 2. Turn off condition • When tire pressure is above(warning threshold + hysteresis). • When tire pressure is above ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Troubleshooting


Troubleshooting Trouble SymptomProbable causeRemedyVehicle pulls to one sideScoring of driveshaft ball jointReplaceWear, rattle or scoring of wheel bearingReplaceDefective front suspension and steeringAdjustment or ReplaceVibrationWear, damage or bending of driveshaftReplaceDriveshaft rattle and hub ...

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