Hyundai Sonata: Fuel Delivery System / Fuel Line Repair procedures

Removal
   
Whenever the high pressure fuel pump, fuel pipe, deliverypipe, or injector is removed immediately after shutting offthe engine, an injury may be caused by the release ofhighly pressurized fuel. Release the residual pressure inthe high pressure fuel line by referring to the "Residualfuel pressure release procedure" before removingany high pressure fuel system components.
1.
Release the residual pressure in fuel line.
(Refer to the Fuel Delivery System - "Release Residual Pressure in Fuel Line")
2.
Turn the ignition switch OFF, and then remove battery (-) cable.
3.
Disconnect the fuel feed tube quick-connector (A).

   
Open the clamp cover (B) before disconnect the quick connector. (If the clip is applied)

   
When removing the quick-connnector with the clip removing tool (A), be careful not to damage the plastic clip (B).
If the clip is damaged, fuel line leak can be occurred due to a bad connection.

4.
Disconnect the vapor hose (A) which is connected from the PCSV.

5.
Lift the vehicle.
6.
Remove the fuel tank.
(Refer to Fuel Delivery System - " Fuel Tank")
7.
Open the vapor tube and fuel feed line fixing clip (A) to using driver.

8.
Remove the fuel line from the bottom of the vehicle.

Installation
1.
Install in the reverse order of removal.
Fuel Pressure Sensor (FPS) Repair procedures
Inspection 1. Connect the GDS on the Data Link Connector (DLC). 2. Check the output voltage of fuel pressure sensor (FPS). Specification : Refer to “Specification” Removal 1. Tu ...

Filler-Neck Assembly Repair procedures
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 veh ...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Heated Steering wheel Schematic Diagrams
Schematic diagram Terminal function Pin NoFunctionA2Heated steering powerA3Swtich signalA13NTC (-)C9NTC (+) ...

Hyundai Sonata LF 2014-2019 Service Manual: Spark Plug Repair procedures
Inspection [On vehicle inspection] 1. Accelerate the engine to about 3,000 rpm 3 times or more. 2. Remove the spark plug. 3. Check the spark plug visually. If the electrode is dry, the spark plug is normal. If the electrode is wet, check the damage and electrode gap as below. [ ...

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