2011 JEEP WRANGLER fuel pump

Poor quality gasoline can cause problems such as hard
starting, stalling and hesitations. If you experience these
symptoms, try another brand of gasoline before consid-
ering service for the vehicle.
Over 40 auto manufacturer’s worldwide have issued and
endorsed consistent gasoline specifications (the World-
wide Fuel Charter, WWFC) to define fuel properties
necessary to deliver enhanced emissions, performance,
and durability for your vehicle. The manufacturer recom-
mends the use of gasoline that meets the WWFC speci-
fications if they are available.
Reformulated Gasoline
Many areas of the country require the use of cleaner
burning gasoline referred to as “Reformulated Gasoline.”
Reformulated gasoline contains oxygenates, and are spe-
cifically blended to reduce vehicle emissions and im-
prove air quality.The manufacturer supports the use of reformulated gaso-
line. Properly blended reformulated gasoline will pro-
vide excellent performance and durability for the engine
and fuel system components.
Gasoline/Oxygenate Blends
Some fuel suppliers blend unleaded gasoline with oxy-
genates such as Ethanol. Fuels blended with oxygenates
may be used in your vehicle.
CAUTION!
DO NOT use gasoline containing Methanol or gaso-
line containing more than 10% Ethanol. Use of these
blends may result in starting and driveability prob-
lems, damage critical fuel system components, cause
emissions to exceed the applicable standard, and/or
cause the “Malfunction Indicator Light” to illumi-
nate. Pump labels should clearly communicate if a
fuel contains greater than 10% Ethanol.
5
STARTING AND OPERATING 453

vehicle. The MMT content of gasoline may not be indi-
cated on the gasoline pump, therefore, you should ask
your gasoline retailer if the gasoline contains MMT.
It is even more important to look for gasoline without
MMT in Canada, because MMT can be used at levels
higher than those allowed in the United States.
MMT is prohibited in Federal and California-
reformulated gasoline.
Materials Added To Fuel
All gasoline sold in the United States is required to
contain effective detergent additives. Use of additional
detergents or other additives are not needed under
normal conditions and would result in additional cost.
Therefore you should not have to add anything to the
fuel.
Fuel System Cautions
CAUTION!
Follow these guidelines to maintain your vehicle’s
performance:
•The use of leaded gasoline is prohibited by Fed-
eral law. Using leaded gasoline can impair engine
performance, and damage the emission control
system.
•An out-of-tune engine, or certain fuel or ignition
malfunctions, can cause the catalytic converter to
overheat. If you notice a pungent burning odor or
some light smoke, your engine may be out of tune
or malfunctioning and may require immediate
service. Contact your authorized dealer for service
assistance.(Continued)5
STARTING AND OPERATING 455

CAUTION!
•Damage to the fuel system or emission control
system could result from using an improper fuel
cap (gas cap). A poorly fitting cap could let impu-
rities into the fuel system. Also, a poorly fitting
aftermarket cap can cause the “Malfunction Indi-
cator Light (MIL)” to illuminate, due to fuel vapors
escaping from the system.
•To avoid fuel spillage and overfilling, do not “top
off” the fuel tank after filling.
WARNING!
•Never have any smoking materials lit in or near
the vehicle when the gas cap is removed or the
tank is being filled.(Continued)
WARNING! (Continued)
•Never add fuel when the engine is running. This is
in violation of most state and federal fire regula-
tions and may cause the MIL to turn on.
•A fire may result if gasoline is pumped into a
portable container that is inside of a vehicle. You
could be burned. Always place gas containers on
the ground while filling.
NOTE:
•When the fuel nozzle “clicks” or shuts off, the fuel
tank is full.
•Tighten the gas cap about 1/4 turn until you hear one
click. This is an indication that the cap is properly
tightened.
•If the gas cap is not tightened properly, the MIL will
come on. Be sure the gas cap is tightened every time
the vehicle is refueled.
458 STARTING AND OPERATING

Cavity CartridgeFuseMini
Fuse Description
J4 25 Amp Natural Driver Door Node
J5 25 Amp Natural Passenger Door Node
J6 40 Amp Green Anti-Lock Brake Sys-
tem (ABS) Pump/
Stability Control Sys-
tem
J7 30 Amp Pink Anti-Lock Brake Sys-
tem (ABS) Valve/
Stability Control Sys-
tem
J8 — —
J9 40 Amp Green PZEV Sec Motor/Flex
FuelCavity Cartridge
FuseMini
Fuse Description
J10 30 Amp Pink Headlamp Wash
Relay/Manifold Tun-
ing Valve
J11 30 Amp Pink Sway Bar
J13 60 Amp Yellow Ignition Off Draw
(IOD) – Main
J14 40 Amp Green Rear Defroster
J15 40 Amp Green Front Blower
J17 40 Amp Green Starter Solenoid
J18 20 Amp Blue Powertrain Control
Module (PCM) Trans
Range
540 MAINTAINING YOUR VEHICLE

Cavity CartridgeFuseMini
Fuse Description
M16 10 Amp
Red Airbag Module
M17 15 Amp
Blue Left Tail/License/
Park Lamp
M18 15 Amp
Blue Right Tail/Park/Run
Lamp
M19 25 Amp
Natural Auto Shut Down
(ASD #1 and #2)
M20 15 Amp
Blue Cabin Compartment
Node Interior Light,
Switch Bank
M21 20 Amp
Yellow Auto Shut Down
(ASD #3)
M22 10 Amp
Red Right Horn (HI/
LOW)Cavity Cartridge
FuseMini
Fuse Description
M23 10 Amp
Red Left Horn (HI/LOW)
M24 25 Amp
Natural Rear Wiper
M25 20 Amp
Yellow Fuel Pump, Diesel
Lift Pump – Export
Only
M26 — —
M27 10 Amp
Red Ignition Switch Feed,
Wireless Module
M28 10 Amp
Red Powertrain Control
Module
M29 — —
M30 15 Amp
Blue Wiper Motor Frt,
J1962 Diagnostic Feed
7
MAINTAINING YOUR VEHICLE 543

Cavity CartridgeFuseMini
Fuse Description
M31 20 Amp
Yellow Backup Lamps
M32 10 Amp
Red Airbag Controller, TT
EUROPE
M33 10 Amp
Red Powertrain Controller
M34 10 Amp
Red Park Assist, Climate
Control System,
Headlamp Wash,
Compass
M35 10 Amp
Red Heated Mirrors
M36 20 Amp
Yellow Power OutletCavity Cartridge
FuseMini
Fuse Description
M37 10 Amp
Red Anti-Lock Brake Sys-
tem, Electronic Stabil-
ity Control, Stop
Lamp Switch, Fuel
Pump Relay
M38 25 Amp
Natural Lock/Unlock Motors
CAUTION!
•When installing the Integrated Power Module
cover, it is important to ensure the cover is prop-
erly positioned and fully latched. Failure to do so
may allow water to get into the Integrated Power
Module, and possibly result in an electrical system
failure.
(Continued)
544 MAINTAINING YOUR VEHICLE