Kia Optima: Troubleshooting - General Information - Emission Control System - Kia Optima TF 2011-2024 Service ManualKia Optima: Troubleshooting

Troubleshooting

Symptom
Suspect area
Engine will not start or struggle to start
Vapor hose damaged or disconnected
Engine struggles to start
Malfunction of the Purge Control Solenoid Valve
Rough idle or engine stalls
Vapor hose damaged or disconnected
Malfunction of the PCV valve
Rough idle
Malfunction of the Evaporative Emission Control System
Excessive oil consumption
Positive crankcase ventilation line clogged

Tightening Torques
Item kgf.m N.m lb-ft Positive crankcase ventilation valve installation 0.19 ~ 0.29 1.9 ~ 2.8 1.4 ~ 2.1 ...

Schematic Diagrams
Schematic Diagram ...

See also:

Inspection
1. Check each part for cracks, damage or wear, and replace the coolant pump assembly if necessary. 2. Check the bearing for damage, abnormal noise and sluggish rotat ...

With central door lock switch (if equipped)
Driver's door Passenger’s door (if equipped) Operate by pressing the central door lock switch. Press the switch to the "Lock" position (1), all vehicle doors will lock. Press ...

Installation
1. Hold the timing chain, and place the intake CVVT & camshaft assembly. 2. Place the exhaust CVVT & camshaft assembly after releasing the ratchet of the timi ...

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