Hyundai Sonata: Evaporative Emission Control System / Fuel Tank Air Filter Repair procedures

Replacement
1.
Turn the ignition switch OFF and disconnect the negative (-) battery cable.
2.
Lift the vehicle.
3.
Remove the rear-left wheel & tire and house cover.
4.
Disconnect the canister close valve connector (A).
5.
Disconnect the vapor hose (B).
6.
Remove installation bolts (A) and then remove the fuel tank air filter.

7.
Release the lever (A), and then separate the canister close valve (B) from the fuel tank air filter (C) after rotating it in the direction of the arrow in the figure.

8.
Install a new fuel tank air filter.
Fuel Filler Cap Description and Operation
Description A ratchet tightening device on the threaded fuel filler cap reduces the chances of incorrect installation, which would seal the fuel filler. After the gasket on the fuel filler cap ...

Exhaust Emission Control System
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Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Heater & A/C Control Unit (DATC) Repair procedures
Self Diagnosis 1. Self-diagnosis process.     • When operating the self-diagnostics, the below fault (self-diagnostics code) will blink at 0.5 seconds interval on the temperature display settings (driver's side only) and the remaining symbols are OFF . 2. Fa ...

Hyundai Sonata LF 2014-2019 Service Manual: Description and Operation
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