Hyundai Sonata: Fuel Delivery System / Fuel Tank Repair procedures

Removal
1.
Release the residual pressure in fuel line.
(Refer to the Fuel Delivery System - "Release Residual Pressure in Fuel Line")
2.
Remove the rear seat cushion.
(Refer to Body - "Rear Seat Assembly")
3.
Remove the fuel pump service cover (A) in the trunk.

4.
Disconnect the fuel feed tube quick-connector (A).
5.
Disconnect the fuel pressure sensor connector (B).
6.
Disconnect the fuel pump control module (C).

7.
Lift the vehicle.
8.
Remove the main muffer.
(Refer to Engine Mechanical System - "Muffler")
9.
Support the fuel tank with a jack.
10.
Disconnect the fuel filler hose (A).
11.
Disconnect the vapor hose quick-connector (A).

12.
Disconnect the fuel tank pressure sensor extension connector (A).

13.
Remove the fuel tank bands (A) installation nuts.

14.
Remove the fuel tank after removing the fuel tank band (A) as below.

Installation
1.
Install in the reverse order of removal.

Fuel tank band installation nut:
39.2 ~ 54.0 N.m (4.0 ~ 5.5 kgf.m, 28.9 ~ 39.8 lb-ft)

Repair procedures
Fuel Pressure Test (Low pressure system) 1. Release the residual pressure in fuel line. (Refer to the Fuel Delivery System - Repair Procedures - "Release Residual Pressure in Fuel Line"). ...

Fuel Pump Repair procedures
Inspection [Fuel sender] 1. Turn the ignition switch OFF, and then remove battery (-) cable. 2. Remove the fuel pump assembly. 3. Using an ohmmeter, measure the resistance between termi ...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Input shaft speed sensor 2 Repair procedures
Removal 1. Remove the air cleaner assembly and air duct. (Refer to Engine Mechnical System - "Air cleaner") 2. Remove the battery and tray. (Refer to Engine Electrical System - "Battery") 3. Remove the clutch actuator. (Refer to Dual Clutch Control System - "Clutch Actuator") 4. ...

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 ...

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