Kia Optima Hybrid: Engine Control System / NVLD(Natural Vacuum Leakage Detection) Schematic Diagrams
| Circuit Diagram |
NVLD(Natural Vacuum Leakage Detection) Repair procedures
Removal 1. Turn the ignition switch OFF and disconnect the battery negative (-) terminal. 2. Disconnect the NVLD connector (A). 3. Disconnect the ventilation hoses (B,C). 4. Remove the NVLD after by loosening ...
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Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Troubleshooting
Troubleshooting SymptionSuspect areaRemedyEngine misfire with abnormal internal lower engine noises.Worn crankshaft bearingsLoose or out of specification engine flywheelReplace the crankshaft and bearings as required.Repair or replace the flywheel as required.Worn piston rings(Oil consumption may or ...
Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Radiator Repair procedures
Inspection Radiator Cap Testing 1. Remove the radiator cap, wet its seal with engine coolant, and then install it on a pressure tester. 2. Apply a pressure of 93.16 ~ 122.58kPa (0.95 ~ 1.25kgf/cm?, 13.51 ~ 17.78psi). 3. Check for a drop in pressure. 4. If the pressure drops, replace the cap. Radiator ...