Hyundai Sonata LF: Air Conditioning System / Refrigerant Line Repair procedures

Hyundai Sonata LF 2014-2019 Service Manual / Heating, Ventilation and Air Conditioning / Air Conditioning System / Refrigerant Line Repair procedures

Replacement
1.
If the compressor is marginally operable, run the engine at idle speed, and let the air conditioning work for a few minutes, then shut the engine off.
2.
Disconnect the negative (-) battery terminal.
3.
Recover the refrigerant with a recovery/charging station.
4.
Remove the engine cover (A).

5.
Remove the expansion valve cover (A) after loosening the nut.
Tightening torque :
8.8 ~ 11.8 N.m ( 0.9 ~ 1.2 kgf.m, 6.5 ~ 8.7 Ib-ft)

6.
Remove the bolts and the expansion valve (A) from the evaporator core.
Tightening torque :
8.8 ~ 11.8 N.m ( 0.9 ~ 1.2 kgf.m, 6.5 ~ 8.7 Ib-ft)

7.
Loosen the bracket mounting bolt (B) from suction& liquid assembly (A).
Tightening torque :
8.8 ~ 11.8 N.m ( 0.9 ~ 1.2 kgf.m, 6.5 ~ 8.7 Ib-ft)

8.
Disconnect the A/C pressure transducer connector (A).

9.
Remove the 2 nuts, and then disconnect the discharge line (A) and liquid line (B) from the condenser.
Tightening torque :
8.8 ~ 11.8 N.m ( 0.9 ~ 1.2 kgf.m, 6.5 ~ 8.7 Ib-ft)

10.
Remove the engine room under cover.
(Refer to Engine Mechanical System - " Engine Room Under Cover")
11.
Remove the bolts, then disconnect the suction line (A) and discharge line (B) from the compressor.
Tightening torque :
8.8 ~ 11.8 N.m ( 0.9 ~ 1.2 kgf.m, 6.5 ~ 8.7 Ib-ft)
   
•
Plug or cap the lines immediately after disconnecting them to avoid moisture and dust contamination.

12.
Install in the reverse order of removal.
   
•
Plug or cap the lines immediately after disconnecting them to avoid moisture and dust contamination.
•
Tighten the bolt or nut joint to the specified torque.
•
Using a gas leak detector, check for refrigerant leakage.
•
Evacuate air in the refrigeration system and charge system with refrigerant.
Refrigerant injection
Engine
Specified amount
Theta 2.4 GDI
575 ± 20 g (20.2 ± 0.70 oz.)
Theta 2.0 T-GDI
/ Gamma 1.6 T-GDI
525 ± 20 g (18.5 ± 0.70 oz.)

    Refrigerant Line Components and Components Location

    C..

    Compressor Description and Operation

    Description The compressor is the power unit of the A/C system. It is located on the side of engine block and driven by a V-belt of the engine. The compressor changes low pressure and low temperature refrigerant gas into high pressure and high temperature refrigerant gas...

    Other information:

    Hyundai Sonata LF 2014-2019 Service Manual: Fuel Pump Control Module (FPCM) Description and Operation


    Description The fuel pump control module (FPCM) is installed on the right side of the fuel tank on the fuel pump top plate and controls the DC motor mounted inside the low pressure fuel pump. The module compares instantaneous fuel pressure information measured by the fuel pressure sensor (FPS) with target fuel pressure information provided by the ECM and generates the desired target fuel pressure by controlling the fuel pump motor and regulating fuel flow rate in the low pressure fuel line between the low and high pressure fuel pumps...

    Hyundai Sonata LF 2014-2019 Service Manual: A/C Pressure Transducer Components and Components Location


    C..

    Categories

    read more

     
    Copyright © 2026 www.hsonatalf.org