Hyundai i-30: Fuel Delivery System / Release residual pressure in fuel line

Hyundai i30 (PD) 2018-2025 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.

Remove the fuel pump fuse (A).

•	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.

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 (A).

6.	Connect the battery (-) cable.

7.	Delete the diagnostic trouble code (DTC) related the fuel pump relay with the diagnostic tool.

Fuel pressure test

Fuel Pressure Test 1. Release the residual pressure in fuel line. (Refer to Fuel Delivery System - "Release Residual Pressure in Fuel Line") • When removing the fuel pump relay, the diagnostic trouble code (DTC) will be occurred...

Fuel Tank

Repair procedures Removal 1. Turn the ignition switch OFF and disconnect the battery (-) terminal. 2...

Other information:

Hyundai i30 (PD) 2018-2025 Owner's Manual: Tyres and wheels

WARNING Tyre failure may cause loss of vehicle control resulting in an accident. To reduce risk of SERIOUS INJURY or DEATH, take the following precautions: Inspect your tyres monthly for proper inflation as well as wear and damage. The recommended cold tyre pressure for your vehicle can be found in this manual and on the tyre label located on the driver’s side centre pillar...

Hyundai i30 (PD) 2018-2025 Service Manual: Troubleshooting

Troubleshooting Symptom Possible cause Remedy Hard steering Improper front wheel alignment Excessive turning resistance of lower arm ball joint Low tire pressure No power assist Correct Replace Adjust Repair and replace Poor return of steering wheel to center Improper front wheel alignment Correct Poor or rough ride Improper front wheel alignment Malfunctioning shock absorber Broken or worn stabilizer Broken or worn coil spring Worn lower arm bushing Correct Repair or replace Replace Replace Replace the lower arm assembly Abnormal tire wear Improper front wheel alignment Improper tire pressure Malfunctioning shock absorber Correct Adjust or replace Replace Wandering Improper front wheel alignment Poor turning resistance of lower arm ball joint Loose or worn lower arm bushing Correct Repair Retighten or replace Vehicle pulls to one side Improper front wheel alignment Excessive turning resistance of lower arm ball joint Broken or worn coil spring Bent lower arm Correct Replace Replace Repair Steering wheel shimmy Improper front wheel alignment Poor turning resistance of lower arm ball joint Broken or worn stabilizer Worn lower arm bushing Malfunctioning shock absorber Broken or worn coil spring Correct Replace Replace Replace Replace Replace Bottoming Broken or worn coil spring Malfunctioning shock absorber Replace Replace Wheel /tire noise, vibration and harshness concerns are directly related to vehicle speed and are not generally affected by acceleration, coasting or decelerating...