Hyundai Sonata LF: Evaporative Emission Control System / Canister Repair procedures

Hyundai Sonata LF 2014-2019 Service Manual / Emission Control System / Evaporative Emission Control System / Canister Repair procedures

Removal

1.	Turn the ignition switch OFF and disconnect the negative (-) battery cable.

2.	Remove the fuel tank. (Refer to Engine Control / Fuel System - " Fuel Tank")

3.	Disconnect the vent hose (A).

4.	Disconnect the vapor tube quick-connector (B,C).

5.	Remove installation bolts (A) and then remove the canister assembly.

Inspection

Check for the following items visually.

A.	Cracks or leakage of the canister

B.	Loose connection, distortion, or damage of the vapor hose/tube

A: Canister - Atmosphere

B: Canister - Fuel Tank

C: Canister - Intake Manifold

Installation

1.	Install in the reverse order of removal.

Repair procedures

Inspection [System Inspection] 1. Disconnect the vapor hose from the intake manifold and connect a vacuum pump to the nipple on the intake manifold...

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...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Injector Troubleshooting

Signal Waveform The three waveforms below are taken from the #1 and #4 injectors. The top waveform is from the high side (feed side) of the #1 and #4 injectors, while the middle waveform is from the low side (ground side) of the #1 injector and the bottom waveform is from the low side of the #4 injector...

Hyundai Sonata LF 2014-2019 Service Manual: Relay Box (Engine Compartment) Repair procedures