2012 Hyundai Accent fuel pump

15
Introduction
Biodiesel
Commercially supplied Diesel blends of no more than 7% biodiesel, commonly
known as "B7 Diesel" may be used in
your vehicle if Biodiesel meets EN 14214
or equivalent specifications. (EN stands
for "European Norm"). The use of biofu-
els exceeding 7% made from rapeseed
methyl ester (RME), fatty acid methyl
ester (FAME), vegetable oil methyl ester
(VME) etc. or mixing diesel exceeding7% with biodiesel will cause increased
wear or damage to the engine and fuel
system. Repair or replacement of worn ordamaged components due to the use of
non approved fuels will not be covered by
the manufactures warranty.
Biodiesel (for New Zealand)
Commercially supplied Diesel blends of no more than 7% biodiesel, commonly
known as "B7 Diesel" may be used in
your vehicle if Biodiesel meets EN 14214
or equivalent specifications. (EN stands
for "European Norm"). The use of biofu-
els exceeding 7%, made from rapeseed
methyl ester (RME), vegetable oil methyl
ester (VME) etc. or mixing diesel exceed-ing 7% with biodiesel will cause
increased wear or damage to the engine
and fuel system. Repair or replacement
of worn or damaged components due to
the use of non approved fuels will not be
covered by the manufactures warranty.CAUTION
Do not let any petrol or water enterthe tank. This would make it neces-
sary to drain it out and to bleed thelines to avoid jamming the injectionpump and damaging the engine.
CAUTION - Diesel Fuel
It is recommended to use the regu-
lated automotive diesel fuel fordiesel vehicle equipped with theDPF system.
If you use diesel fuel including highsulfur (more than 50 ppm sulfur)and unspecified additives, it cancause the DPF system to be dam-aged and white smoke can be emit-
ted.
CAUTION
Never use any fuel, whether diesel, B7 biodiesel or otherwise,that fails to meet the latest petro- leum industry specification.
Never use any fuel additives or treatments that are not recom-mended or approved by the vehi-cle manufacturer.CAUTION
Never use any fuel, whether diesel, B7 biodiesel or otherwise,that fails to meet the latest petro-leum industry specification.
Never use any fuel additives or treatments that are not recom-mended or approved by the vehi-cle manufacturer.

Maintenance
4
7
Engine compartment precautions (Diesel engine)
Follow the safety tips provided below,
when you are checking the engine bay
whilst the engine is running.
- Do not touch the injector, injector
wirings, and the engine computer
whilst the engine is running.
- Do not remove the injector connector whilst the engine is running.
- People using pacemakers must not go near the engine whilst the engine
is starting or running.
WARNING - Maintenance
work
Performing maintenance work on a vehicle can be dangerous. You
can be seriously injured whilst
performing some maintenance
procedures. If you lack sufficient
knowledge and experience or the
proper tools and equipment to do
the work, have it done by an
authorised HYUNDAI dealer.
Working under the bonnet with the engine running is dangerous.
It becomes even more dangerous
when you wear jewelry or loose
clothing. These can become
entangled in moving parts and
result in injury. Therefore, if you
must run the engine whilst work-
ing under the bonnet, make cer-
tain that you remove all jewelry
(especially rings, bracelets,
watches, and necklaces) and all
neckties, scarves, and similar
loose clothing before gettingnear the engine or cooling fans.WARNING - Diesel Engine
Never work on injection system with engine running or within 30
seconds after shutting off engine.
High-pressure pump, rail, injectorsand high-pressure pipes are sub-
ject to high pressure even after the
engine stopped. The fuel jet pro-
duced by fuel leaks may cause seri-
ous injury, if it touches the body.
People using pacemakers should
not move within 30cm of the ECU orwiring harness within the engine
room whilst engine is running, high
currents used in the electronic
engine control system produce
considerable magnetic fields.

Maintenance
8
7
NORMAL MAINTENANCE SCHEDULE
The following maintenance services must be performed to ensure good emission control and performance. Keep receipts for all
vehicle emission services to protect your warranty. Where both mileage and time are shown, the frequency of service is deter-
mined by whichever occurs first. * 1
: Adjust alternator, water pump drive belt and air conditioner
drive belt (if equipped). Inspect and if necessary repair or
replace.
* 2
: Check the engine oil level and leak every 500 km or before
starting a long trip.
* 3
: If good quality petrol meeting Europe Fuel standards
(EN228) or equivalent, including fuel additives is not avail-
able, one bottle of additive is recommended. Additives are
available from your authorised HYUNDAI dealer along with
information on how to use them. Do not mix other additives.
* 4
: This maintenance schedule depends on fuel quality. It is
applicable only when using a qualified fuel <"EN590 or
equivalent">. If the diesel fuel specifications don't meet the
EN590, it must be replaced more frequently. HYUNDAI rec-
ommends "every 7,500km inspection, every 15,000kmreplacement".
If there are some important safety matters like fuel flow
restriction, surging, loss of power, hard starting problemetc., replace the fuel filter immediately regardless of main-
tenance schedule and consult an authorised HYUNDAI
dealer for details *
5
: For your convenience, it can be replaced prior to it's interval
when you do maintenance of other items.
* 6
: Inspect for excessive valve noise and/or engine vibration
and adjust if necessary. An authorised HYUNDAI dealer
should perform the operation.
* 7
: The fuel filter is considered to be maintenance free but peri-
odic inspection is recommended for this maintenance
schedule depends on fuel quality. If there are some impor-
tant matters like fuel flow restriction, surging, loss of power,
hard starting problem etc, replace the fuel filter immediate-ly regardless of maintenance schedule and consult an
authorised HYUNDAI dealer for details.
* 8
: When adding coolant, use only deionized water or soft
water for your vehicle and never mix hard water in the
coolant filled at the factory. An improper coolant mixture can
result in serious malfunction or engine damage.
* 9
: Inspect drive belt tensioner, idler and alternator, pulley and
if necessary repair or replace.

717
Maintenance
EXPLANATION OF SCHEDULED MAINTENANCE ITEMS
Engine oil and filter The engine oil and filter should be
changed at the intervals specified in the
maintenance schedule. If the car is being
driven in severe conditions, more fre-quent oil and filter changes are required. Drive belts
Inspect all drive belts for evidence of
cuts, cracks, excessive wear or oil satu-
ration and replace if necessary. Drive
belts should be checked periodically forproper tension and adjusted as neces-
sary. Fuel filter A clogged filter can limit the speed at
which the vehicle may be driven, damage
the emission system and cause multiple
issues such as hard starting. If an exces-
sive amount of foreign matter accumu-
lates in the fuel tank, the filter may
require replacement more frequently.
After installing a new filter, run the engine
for several minutes, and check for leaks
at the connections. Fuel filters should be
installed by an authorised HYUNDAI
dealer.
Fuel lines, fuel hoses and con- nections
Check the fuel lines, fuel hoses and con-
nections for leakage and damage. Have
an authorised HYUNDAI dealer replace
any damaged or leaking parts immedi-
ately.
WARNING -
Diesel only
Never work on injection system with engine running or within 30
seconds after shutting off engine.
High pressure pump, rail, injectorsand high pressure pipes are sub-
ject to high pressure even after the
engine stopped. The fuel jet pro-
duced by fuel leaks may cause seri-
ous injury, if it touch the body.
People using pacemakers should
not move within 30 cm of the ECUor wiring harness within the engine
room whilst engine is running, highcurrents used in the Common Rail
system produce considerable mag-netic fields.

729
Maintenance
FUEL FILTER (FOR DIESEL)
Draining water from the fuel filter
The fuel filter for diesel engine plays an
important role of separating water from
fuel and accumulating the water in itsbottom.
If water accumulates in the fuel filter, the
warning light comes on when the ignition
switch is in the ON position. If this warning light illuminates,
take your car to an authorised
HYUNDAI dealer and have
drain the water and checkedthe system. Extracting air from the fuel filter
If you drive until you have no fuel left or if
you replace the fuel filter, be sure to
extract air from the fuel system as it
makes it difficult to start the engine.
1. Pump up and down(1) approximately
50 times until the pump is hard.
2. Extract air from the fuel filter by remov- ing the bolt(2) with a cross-tip screw
driver and reinstall the bolt(2).
3. Pump up and down(1) approximately 15 times.
4. Extract air from the fuel filter by remov- ing the bolt(2) with a cross-tip screw
driver and reinstall the bolt(2).
5. Pump up and down(1) approximately 5 times.
✽✽ NOTICE

759
Maintenance
DescriptionSymbolFuse ratingProtected component
MULTI FUSE
80AEPS Control Module
40ARLY.10 (Blower Relay)
40AI/P Junction Box (Rear Defogger Relay)
40AABS Control Module, ESP Control Module
40AABS Control Module, ESP Control Module, Multipurpose Check Connector
125A(GSL)150A(DSL)Alternator, Diesel Box (GLOW 80A, PTC 1/2/3 50A),
E/R Fuse & Relay Box (Multi Fuse F1~F5, Fuse F20)
30ADiesel : RLY.12 (Fuel Filter Heater Relay)
50AI/P Junction Box (Power Connector Fuse : F35/F36, Fuse : F12~F15, Tail Lamp Relay)
FUSE
50ARLY.7 (Start Relay), RLY. 6 (Button Start (IG2) Relay), Ignition Switch
40ARLY.2 (Button Start (ACC) Relay), RLY. 9 (Button Start (IG1) Relay), Ignition Switch
40ARLY.1 (Engine Control Relay), Fuse F25
30ARLY.3 (Cooling Fan (Low) Relay), RLY.8 (Cooling Fan (High) Relay)
50AI/P Junction Box (Relay : Power Window, Hazard, Door Lock/Unlock, Tail Gate Unlock,
Fuse : F23~F25, F31, F32)
10ARLY.5 (Horn Relay)
10APetrol: RLY.2 (Fuel Pump Relay)
Engine compartment main fuse panel

Maintenance
60
7
DescriptionSymbolFuse ratingProtected component
FUSE
10ARLY.4 (A/C Relay)
20ADiesel : ECM
15APetrol : ECM, TCM, Injector #1~#4, Oil Control Valve, RLY.12 (Fuel Pump Relay)
Diesel : Diesel Box (Glow Relay, PTC Heater Relay #1), VGT Actuator, Camshaft Position
Sensor, Electrical EGR Actuator, Immobiliser Module
10A
Petrol : ECM, Camshaft Position Sensor, Purge Control Solenoid Valve, Oxygen Sensor
(Up/Down), Immobiliser Module, RLY.3 (Cooling Fan (Low) Relay), RLY.4 (A/C Relay),
RLY.8 (Cooling Fan (High) Relay)
Diesel : Stop Lamp Switch, Lambda Sensor,
RLY.3 (Cooling Fan (Low) Relay), RLY.4 (A/C Relay), RLY.8 (Cooling Fan (High) Relay)
10ATCM
10ADiesel : Fuel Pressure Regulator Valve
10ATCM, Transaxle Range Switch, Instrument Cluster, BCM, Rear Combination Lamp LH/RH
10ADiesel : ECM, Multifunction Switch (Wiper), Front Wiper Motor