| Removal | 
| 1. | 
 Turn the ignition seitch OFF and disconnect the battery negative (-) cable.  | 
| 2. | 
 Open the fuel filler door and then remove the filler-neck installation screw (A). 
  | 
| 3. | 
  Lift the vehicle.  | 
| 4. | 
 Remove the rear-LH wheel, tire, and the inner wheel house.   | 
| 5. | 
 Remove the rear sub frame. 
( Refer to Suspension System - " Rear Sub Frame ")  | 
| 6. | 
 Disconnect the canister close valve connector (A).  
  | 
| 7. | 
 Disconnect the fuel filler hose (A).   | 
| 8. | 
 Disconnect the ventilation hose (B) from the fuel tank air filter. 
  | 
| 9. | 
  Remove the filler-neck assembly from the vehicle after removing the bracket installation bolt (A). 
  | 
| Installation | 
| 1. | 
 Install in the reverse order of removal. 
  | 
Fuel Line Repair procedures
Accelerator Pedal Repair proceduresHyundai Sonata LF 2014-2019 Service Manual: Fuel Filler Door Open Switch Repair procedures
   Inspection
1.
Disconnect the negative (-) battery terminal.
2.
Using a screwdriver or remover, remove the fuel filler door open switch (A).
    
Take care not to scratch the crash pad surface.
3.
Disconnect the fuel filler door open switch connector (A).
4.
Apply  ...
   
Hyundai Sonata LF 2014-2019 Service Manual: Curtain Airbag (CAB) Module Repair procedures
   Removal
1.
Disconnect the battery negative cable and wait for at least 3 minutes before beginning work.
2.
Remove the roof trim.
(Refer to Body - "Roof Trim Assembly")
3.
Disconnect the curtain airbag harness connector.
4.
After loosening the mounting bolts and nuts remove the curta ...