Kia Optima Hybrid: Steering System / Troubleshooting
| Troubleshooting |
| Symptom | Probable cause | Remedy |
| Play in steering | Loose yoke plug | Retighten |
| Loose steering gear mounting bolts | Retighten | |
| Loose or worn tie rod end | Retighten or replace as necessary | |
| Steering wheel does not return properly | Excessive turning resistance of tie rod end | Replace |
| Yoke plug excessively tight | Adjust | |
| Tie rod and/or ball joint cannot turn smoothly | Replace | |
| Loose mounting of gear box mounting bracket and/or worn steeringshaft joint | Retighten | |
| Worn steering shaft joint and/or body grommet | Correct or replace | |
| Distorted rack | Replace | |
| Damaged pinion bearing | Replace | |
| Twisted or damaged hoses | Reposition or replace |
Special Service Tools
Special Service Tools Tool Name / NumberIIIustrationDescriptionLower arm ball joint remover0K545-A9100Removal of front lower arm from front axle Personal Protective Equipment NameIllustrationDescriptionInsulation ...
Other information:
Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: 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 ...
Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Troubleshooting
Trouble Shooting Ignition System SymptomSuspect areaRemedyVehicle indicates Ready in dash, but engine will not run when requested by the HPCU (HEV module).Ignition coilInspect ignition coil, or replace as requiredSpark plugsInspect spark plugs, or replace as requiredIgnition wiring disconnected or brokenRepair ...