Hyundai Palisade: Fuel Delivery System / Fuel pressure test (low pressure system)
| Fuel Pressure Test (Low
pressure system) |
| 1. |
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. Delete the code with the diagnostic
tool after completion of "Release Residual Pressure
in Fuel Line" work.
|
|
|
| 2. |
Install the Special Service Tool (SST).
| (1) |
Disconnect the fuel feed tube from the delivery pipe.
|
• |
There may be some residual pressure even after
completing to “Release Residual Pressure in
Fuel Line”, so cover the hose connection with
a shop towel to prevent residual fuel from spilling
out before disconnecting any fuel connection.
|
|
|
| (2) |
Install the special service tool for measuring the fuel pressure
in between the fuel feed tube and the fuel delivery pipe (Refer
to the figure below).
|
|
| 3. |
Inspect fuel leakage on connections among the fuel feed tube, the delivery
pipe, and the SST components with ignition "ON".
|
| 4. |
Measure Fuel Pressure.
| (1) |
Start the engine and measure the fuel pressure at idle.
|
Fuel Pressure : Over 290 kPa (Over 2.9 bar, Over 2.95
kgf/cm, Over 42.06 psi)
|
|
• |
If the fuel pressure does not satisfy the specification,
repair or replace the related part. (Refer to
the table below.)
|
|
Fuel Pressure
|
Cause
|
Related Part
|
Too Low
|
Fuel filter clogged
|
Fuel Filter
|
Fuel leakage
|
Fuel Pressure Regulator
|
Too High
|
Fuel pressure regulator stuck
|
Fuel Pressure Regulator
|
|
| (2) |
Stop the engine, and then check for the change in the fuel pressure
gauge reading.
|
Standard Value : The gauge reading should hold for about
5 minutes after the engine stops
|
|
• |
f the gauge reading could not be held, repair
or replace the related part. (Refer to the table
below.)
|
|
Fuel Pressure
(After Engine Stops)
|
Cause
|
Related Part
|
Fuel Pressure Drops Slowly
|
Leakage on injector
|
Injector
|
Fuel Pressure Drops Immediately
|
Check valve of fuel pump stuck open
|
Fuel Pump
|
|
| (3) |
Switch "OFF" the ignition.
|
|
| 5. |
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. Delete the code with the diagnostic
tool after completion of "Release Residual Pressure
in Fuel Line" work.
|
|
|
| 6. |
Finish test.
| (1) |
Remove the Special Service Tool (SST) from the low pressure
fuel feed tube and the low pressure inlet of high pressure fuel
pump.
|
| (2) |
Connect the low pressure fuel feed tube and the low pressure
inlet of high pressure fuel pump.
|
|
Components Location
Fuel Tank & Filter-Neck Assembly
1. Fuel tank
2. Fuel pump
3. Fuel filter
4...
Release Residual Pressure
in Fuel Line
•
Whenever the high pressure fuel fuse, fuel pipe, delivery pipe,
or injector is removed immediately after shutting off the engine,
an injury may be caused by the release of highly pressurized
fuel...
Other information:
Components and components location
Component Location
1. Front door window glass
Repair procedures
Replacement
•
Put on gloves to prevent hand injuries...
The drive mode may be selected
according to the driver's preference
or road condition.
Drive Mode
The mode changes whenever the
DRIVE MODE selection knob is
rotated.
SMART mode :
SMART mode automatically
adjusts the driving mode (ECO ↔
COMFORT ↔ SPORT) in accordance
with the driver's driving
habits...
Categories
The SRS consists of the following
components:
1. Driver's front air bag module
2. Passenger's front air bag module
3. Side air bag modules
4. Curtain air bag modules
5. Retractor pre-tensioner
6. Air bag warning light
7. SRS control module (SRSCM)/
Rollover sensor
8. Front impact sensors
9. Side impact sensors
10.Side pressure sensors
11. Occupant classification system
12. Driver’s knee airbag module
read more
Components and components location
Release residual pressure in fuel line