Intake Actuator Repair procedures
Heater & A/C Control Unit (Manual) Components and Components LocationHyundai Elantra AD (2016-2020) Service Manual: Electric Thermostat (ECT) Troubleshooting
Troubleshooting
SymptomsPossible CausesRemedyCoolant leakage
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From the thermostat gasket
Check the mounting nuts
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Check the torque of the mounting nuts
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Retighten the bolts and check leakage again.
Check the gasket for damage
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Check gasket or seal for damage
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Hyundai Elantra AD (2016-2020) Owners Manual: Immobilizer System
The immobilizer system protects your vehicle from theft. If an improperly coded
key (or other device) is used, the engine's fuel system is disabled.
When the ignition switch is placed in the ON position, the immobilizer system
indicator should come on briefly, then go off. If the indicator ...