Other information:
Hyundai Elantra AD (2016-2020) Service Manual: ATF Warmer Repair procedures
Removal
1.
Remove the under cover.
(Refer to Engine Mechanical System - "Engine room under cover")
2.
Loosen the drain plug and drain the engine coolant.
(Refer to Cooling System - "Coolant")
3.
Disconnect the cooling hose (A) after separated the clamp.
4.
Disconnect the hose (A ...
Hyundai Elantra AD (2016-2020) Service Manual: Repair procedures
Inspection
1.
After disconnecting the vapor hose from the PCV valve, remove the PCV valve.
2.
Reconnect the PCV valve to the vapor hose.
3.
Run the engine at idle, then put a finger over the open end
of the PCV valve and make sure that intake manifold vacuum can be felt.
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