| Troubleshooting |
| Symptom | Suspect area |
| Engine will not start or hard to start | Vapor hose damaged or disconnected |
| Engine hard 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 |
Specifications
Schematic DiagramsHyundai Elantra AD (2016-2020) Owners Manual: ESC OFF usage
When Driving
The ESC OFF mode should only be used briefly to help free the vehicle if stuck
in snow or mud by temporarily stopping operation of the ESC to maintain wheel torque.
To turn ESC off while driving, press the ESC OFF button while driving on a flat
road surface.
NOTICE
To prevent da ...
Hyundai Elantra AD (2016-2020) Service Manual: Smart Key Diagnostic Repair procedures
Inspection
Self Diagnosis with Scan Tool
It will be able to diagnose defects of SMART KEY system with
GDS quickly. GDS can operates actuator forcefully, input/output value
monitoring and self diagnosis.
The following three features will be major problem in SMART KEY system.
1.
Problem in ...