2014 JEEP WRANGLER fuel pump

Over 40 auto manufacturers worldwide have issued and
endorsed consistent gasoline specifications (the World-
wide Fuel Charter, WWFC) which define fuel properties
necessary to deliver enhanced emissions, performance,
and durability for your vehicle. The manufacturer recom-
mends the use of gasolines that meet 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 contain 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 of 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 drivability 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.
Problems that result from using gasoline containing
Methanol or gasoline containing more than 10% Ethanol
are not the responsibility of the manufacturer and may
not be covered under New Vehicle Limited Warranty.
522 STARTING AND OPERATING

E-85 Usage In Non-Flex Fuel Vehicles
Non-Flex Fuel Vehicles (FFV) are compatible with gaso-
line containing 10% ethanol (E10). Gasoline with higher
ethanol content may void the New Vehicle Limited
Warranty.
If a Non-FFV vehicle is inadvertently fueled with E-85
fuel, the engine will have some or all of these symptoms:
•Operate in a lean mode.
• OBD II “Malfunction Indicator Light” on.
• Poor engine performance.
• Poor cold start and cold drivability.
• Increased risk for fuel system component corrosion.
To fix a Non-FFV vehicle inadvertently fueled once with
E-85 perform the following:
• Drain the fuel tank (see your authorized dealer). •
Change the engine oil and oil filter.
• Disconnect and reconnect the battery to reset the
engine controller memory.
More extensive repairs will be required for prolonged
exposure to E-85 fuel.
MMT In Gasoline
Methylcyclopentadienyl Manganese Tricarbonyl (MMT) is a
manganese-containing metallic additive that is blended into
some gasoline to increase octane. Gasoline blended with
MMT provides no performance advantage beyond gasoline
of the same octane number without MMT. Gasoline blended
with MMT reduces spark plug life and reduces emissions
system performance in some vehicles. The manufacturer
recommends that gasoline without MMT be used in your
vehicle. The MMT content of gasoline may not be indicated
on the gasoline pump, therefore, you should ask your
gasoline retailer whether the gasoline contains MMT. MMT is
prohibited in Federal and California reformulated gasoline.
5
STARTING AND OPERATING 523

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.
Loose Fuel Filler Cap Message
After fuel has been added, the vehicle diagnostic system
can determine if the fuel filler cap is possibly loose,
improperly installed, or damaged. If the system detects a
malfunction, the “gASCAP” message will display in the
odometer display. Tighten the gas cap until a clicking
sound is heard. This is an indication that the gas cap is
properly tightened. Press the odometer reset button to
turn the message off. If the problem persists, the message
will appear the next time the vehicle is started. This
might indicate a damaged cap. If the problem is detected
twice in a row, the system will turn on the MIL. Resolving
the problem will turn the MIL off.
5
STARTING AND OPERATING 527

CavityCartridge Fuse Mini Fuse Description
J5 25 Amp Clear –Passenger Door Node
J6 40 Amp Green –Anti-Lock Brake System (ABS) Pump/
Stability Control System
J7 30 Amp Pink –Anti-Lock Brake System (ABS) Valve/
Stability Control System
J8 –– –
J9 40 Amp Green –PZEV Sec Motor/Flex Fuel
J10 30 Amp Pink –Headlamp Wash Relay/Manifold Tuning
Valve
J11 30 Amp Pink – Sway Bar
J12 30 Amp Pink –Rear Blower Motor/Radiator Fan
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
7
MAINTAINING YOUR VEHICLE 621

CavityCartridge Fuse Mini Fuse Description
M25 –20 Amp Yellow Fuel Pump, Diesel Lift Pump – Export
Only
M26 –10 Amp Red Power Window Switch, Driver Window
Switch
M27 –10 Amp Red Ignition Switch Feed, Wireless Module
M28 –10 Amp Red Powertrain Control Module
M29 –10 Amp Red Powertrain
M30 –15 Amp Blue Wiper Motor Frt, J1962 Diagnostic Feed
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 Outlet
7
MAINTAINING YOUR VEHICLE 625

CavityCartridge Fuse Mini Fuse Description
M37 –10 Amp Red Anti-Lock Brake System, Electronic Stabil-
ity Control, Stop Lamp Switch, Fuel PumpRelay
M38 –25 Amp Clear Lock/Unlock Motors
CAUTION!
•When installing the Integrated Power Module
cover, it is important to ensure the cover is properly
positioned and fully latched. Failure to do so may
allow water to get into the Integrated Power Mod-
ule, and possibly result in an electrical system
failure.
(Continued)
CAUTION! (Continued)
•When replacing a blown fuse, it is important to use
only a fuse having the correct amperage rating. The
use of a fuse with a rating other than indicated may
result in a dangerous electrical system overload. If
a properly rated fuse continues to blow, it indicates
a problem in the circuit that must be corrected.
626 MAINTAINING YOUR VEHICLE