Hyundai Elantra: Fuel Delivery System / Release residual pressure in fuel line

Hyundai Elantra (CN7) 2021-2025 Service Manual / Engine Control / Fuel System / Fuel Delivery System / Release residual pressure in fuel line

Release Residual Pressure in Fuel Line

•	There may be some residual pressure even after "Release Residual Pressure in Fuel Line" work, so cover the hose connection with a shop towel to prevent residual fuel from spilling out before disconnecting any fuel connection.

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

2.	Remove the fuel pump fuse (A).

3.	Connect the battery (-) cable.

4.	Start the engine and let idle, and then turn the ignition switch OFF after the engine has stopped on its own.

5.	Disconnect the battery (-) cable, and then install the fuel pump fuse.

6.	Connect the battery (-) cable.

Delete the Diagnostic Trouble Code (DTC) related the fuel pump fuse with the diagnostic tool.

•	When removing the fuel pump fuse, a Diagnostic Trouble Code (DTC) may occur. Delete the code with the diagnostic tool after completion of "Release Residual Pressure in Fuel Line" work.

Fuel pressure test

Fuel Pressure Test1.Release the residual pressure in fuel line.(Refer to Fuel Delivery System - "Release Residual Pressure in Fuel Line") • When removing the fuel pump fuse, a Diagnostic Trouble Code (DTC) may occur...

Fuel Tank

Repair procedures Removal1.Release the residual pressure in fuel line.(Refer to Fuel Delivery System - "Release Residual Pressure in Fuel Line")2.Turn ignition switch OFF and disconnect the negative (-) battery cable...

Other information:

Hyundai Elantra (CN7) 2021-2025 Service Manual: Components and components location

Components1. Remote control switch (Audio swtich) 2. Remote control switch (Cruise control switch)..

Hyundai Elantra (CN7) 2021-2025 Owner's Manual: EPB malfunction indicator

This warning light illuminates if the ignition switch is set to the ON position and goes off in approximately 3 seconds if the system is operating normally. If the EPB malfunction indicator remains on, comes on while driving, or does not come on when the ignition switch is changed to the ON position, this indicates that the EPB may have malfunctioned. If this occurs, have the system check..

Tachometer

The tachometer indicates the approximate number of engine revolutions per minute (RPM).

Use the tachometer to select the correct shift points and to prevent lugging and/ or over-revving the engine.

NOTICE

Do not operate the engine within the tachometer's RED ZONE. This may cause severe engine damage.